Autocannon 2 and 5 tweak, House Rule Suggestion

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l0rDn0o8sKiLlZ
12/12/17 01:06 AM
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Would dropping the AC/2 from 6-tons to 4-tons make it more balanced / viable?

Since it would mean a pair of AC/2s would almost make the same damage as an AC/5, but with extra range for the same tonnage before ammo.

Likewise would dropping the AC/5 from 8-tons to either 6 or 7 tons make it more balanced / viable?

Maybe a 3.5 ton AC/2?

Any thoughts on this? I'd assume keeping the crits the same.
ghostrider
12/12/17 05:07 PM
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I am not the numbers person that would go thru and evaluate this, I have always thought the weights of the cannons were a bit much, when compared to how much ammo they need, and that explodes while energy weapons don't when hit.

The heat from the energy weapons is a pain, but when you look at it compared to the explosiveness of the ammo, I would think leaving the ammo behind is best.

I do agree that the issues of vehicles not building up heat from ballistic weapons means they can use them without any such issues of heat worries. So most suggest that is why the cannons are so heavy. Not sure about Battledroids, but the original btech didn't have tanks in them.
It was all mechs.
Now dropping the heat for mechs, such as ac 2/5 do none, while the 10 might put 1 heat out and the 20 do like 3 might counter the weight issues some. We had a discussion dealing with this in another thread.
Until the gauss rifle changed the heat/range/weight issues most cannons were pretty well useless on mech, in my opinion. Even the gauss rifle has issues. The light gauss rifle seems more along a decent line.

A thought about tanks, would be have them build heat from the ac/missiles like a mech.
The argument against lowering the weight is, it makes a vehicle more powerful then mechs of similar weight.
CrayModerator
12/12/17 05:39 PM
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I'd be tempted to go even lighter than your suggestions (or the existing Light ACs). Consider the competitors:

The AC/2 is easily rivaled by the 2-ton LRM 5. The AC/2 has a small range advantage, but the LRM 5 has better peak damage, indirect fire capability, and useful alternate munitions. Some perks that might help the AC/2:
1) Lighter and smaller. Say, 2-3 tons and 1 crit.
2) Behaves like MG with respect to infantry, like 1d6 or 2d6 damage
3) And give it 50 shots per ton. Really, 45? When every other AC does 100pts per ton of ammo?

The AC/5 has a similar competitor in the LRM 10, but also butts into the large laser, PPC, etc. Heck, considering it's only 2 tons, the LRM 5 still stands up well against the AC/5. The 3-ton, 18-range, 5-point Light PPC is doom for the AC/5. Similar improvements come to mind:
1) Lighter and smaller, say 4-5 tons and 2 crits
2) Behaves like an MG with respect to infantry, like 2d6 damage
Mike Miller, Materials Engineer

Disclaimer: Anything stated in this post is unofficial and non-canon unless directly quoted from a published book. Random internet musings of a BattleTech writer are not canon.
Karagin
12/12/17 10:16 PM
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Does not the AC2 have alternate ammo to draw on as well?
Karagin

Given time and plenty of paper, a philosopher can prove anything.
CrayModerator
12/13/17 06:01 PM
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Quote:
Does not the AC2 have alternate ammo to draw on as well?



Yep, but not fun stuff like Thunder mines.
Mike Miller, Materials Engineer

Disclaimer: Anything stated in this post is unofficial and non-canon unless directly quoted from a published book. Random internet musings of a BattleTech writer are not canon.
Karagin
12/13/17 06:27 PM
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Quote:
Quote:
Does not the AC2 have alternate ammo to draw on as well?



Yep, but not fun stuff like Thunder mines.



But it has the stuff, so it's damage can be more or less depending on the type, with things like AP rounds etc...
Karagin

Given time and plenty of paper, a philosopher can prove anything.
ghostrider
12/14/17 12:09 AM
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If the wiki entry is right, the streak lrm 5 is only 2 tons with 24 shots per ton. I would think the ac 2 is history with that in play. And that is not including the 28 extended range of it.
Granted the ammo is limited to just the normal shots, but it is better to have all ordinance hit, ie 5 points. And you can put in 3 launchers for the weight of one normal ac 2.

I guess when we discussed this before, it was not house rules, so the ideas were not put up.

So any suggestions on the 10 and 20 for a house rule?
Karagin
12/14/17 01:24 AM
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The ammo isn't limited for the AC2, you can have the alternate ammo load outs for it.
Karagin

Given time and plenty of paper, a philosopher can prove anything.
Rajaat99
12/18/17 01:44 PM
76.27.89.112

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I've never actually had a player want to take an AC/2, because of its low damage and high tonnage requirement. I think Cray has the right idea, if you want to house rule it.
However, I'm currently running a game during the succession war era, so I don't play with the fancy AC ammunition.
"You are not alone among strangers, a way has been chosen."
ghostrider
12/18/17 07:34 PM
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The 3025 era on up to the helm core release had only one ammo in the original box set. The rest were introduced in the updates and upgrades.

And the weight issues is a big problem with them. They just weighed too much compared to most other weapons. The low heat was supposed to make them better, but running out of ammo kind of killed that idea. Energy weapons was so much easier to deal with as running out of ammo in the middle of a battle just plain stunk.
Karagin
12/18/17 09:08 PM
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Yes those were just as all the extra ammo types for the LRM and SRM were as well.
Karagin

Given time and plenty of paper, a philosopher can prove anything.
ghostrider
12/19/17 05:28 PM
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The ac 2 seems to shine when going against weapon towers in open terrain, and the enemy does not have artillery.
You sit back out of lrm range and pepper the installations until you get a good crit or finally bring them down. Otherwise, the damage and range isn't enough to do more then make the enemy laugh as they rush under the minimum range of the weapon and pound you to death with their mls.

On a side note, the ac 2 is good for lots of ammo to crit vehicles with when they can't get near you, such as on a ridge that they can't get up, or across a river that you just took out their bridge.

But I have experienced the same thing. Most players will not take a mech with ac 2's on them.
csadn
12/22/17 02:09 AM
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http://www.heavymetalpro.com/bv_calc.htm is the only weapon-BV calculator I can find -- and it doesn't include a weapons mass or size. I can't find an "official" weapon-BV formula out there (and given what CGL's done with the game, I'm not surprised).
CF

Oregon: The "Outworlds Alliance" of the United States of America
TigerShark
01/04/18 02:47 PM
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That's because tonnage, critical slots, and heat do not factor into weapon BV. A PPC that gives off 10 heat or 15 heat are the same BV, using the current calculation.
ghostrider
01/05/18 05:29 AM
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How is that possible?
I thought bv changed as ranges changed on weapons.
The IS ERPPC has more range then the standard ppc. So it should be slightly more value. Also no minimum.

But I guess that is why people think the bv system is broken.
Karagin
01/05/18 05:22 PM
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Congratulations ghostrider you have taken your first step into understanding why folks are not always happy with BT and it's mechanics when it comes to BV and how silly it is.
Karagin

Given time and plenty of paper, a philosopher can prove anything.
BootDisk
01/10/18 11:55 AM
71.14.85.117

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Here is the formula I am currently using to compare weapons:

(adjusted Damage x Number of Hexes it can operate in)/heat/tons/crit size

Short range does “full damage”. I account for medium and long range by reducing medium range damage by 1/3, and long range damage by 2/3. This is incredibly complicated because each weapon has its own ranges that it considers short/med/long, so I have to painstakingly enter every weapon. BUT it is fun. Having said that:

They are not even in the same league. The AC/2 wins on taking up less crit spaces, while the AC/5 wins on damage and tonnage. The AC/2 can attack 3 hex longer at an expense of losing two hex at short range. Considering it is impossible to keep your enemy precisely at your maximum range, this is more in favor of the AC/5. Elsewhere in the ranges, the hit modifiers are within 1-2 hex of each other for both weapons.

First, equal tonnage of both types:
AC/2 (x4) = 8 damage, 4 heat, 24 tons, 4 crits (my rating for this is 0.9)
AC/5 (x3) = 15 damage, 3 heat, 24 tons, 12 crits (my rating for this is 5.6)

If you try to match the damage of both, you take 13 AC/2s and 5 AC/5s
AC/2 (x13) = 26 damage, 13 heat, 78 tons, 13 crits (my rating for this is 3.0)
AC/5 (x5) = 25 damage, 5 heat, 40 tons, 20 crits (my rating for this is 9.3)

Trying to match critical slots doesn’t work either:
AC/2 (x4) = 8 damage, 4 heat, 24 tons, 4 crits (my rating for this is 0.9)
AC/5 (x1) = 5 damage, 1 heat, 8 tons, 4 crits (my rating for this is 1.9)

The main problem with these two weapons is that they both generate the same heat. There is just no getting around that.
If you want to try reducing the weight of the AC/2 until it has a similar rating as an AC/5, the AC/2 would have to weigh 0.7 tons. This is accounting for the factors of damage, heat, range, weight, and critical slots.
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