This article is about the BattleMech. For the leader of the Marian Hegemony, see Caesar of the Marian Hegemony.
Production information
Manufacturer Johnston Industries[1]
Production Year 3049[2]
Model CES-3R[1]
Class Heavy
Cost 13,424,674 C-bills
Technical specifications
'Mech type Inner Sphere BattleMech
Mass 70 tons
Chassis Dorwinion CES Standard
Armor Kallon Royalstar with CASE
Engine GM 280 Extralight
Communications System Johnston Wide Band
Targeting Tracking System Randar Pinpoint-HY
Heat Sinks 16 double
Speed 64 km/h
BV (1.0) 1,420[3]
BV (2.0) 1,578[1]


Originally a reverse engineered version of the Capellan Confederation's Cataphract intended to mask development of the Federated Commonwealth's fearsome Axman, the Caesar would turn out to be a good but not great BattleMech in its own right.[4]

Supposedly the sole design intended to come out of Johnston Industries' then-new 'Mech lines on New Syrtis, the Caesar received notable public attention in an attempt to distract from development of the Axman. The finished 'Mech surprisingly enough proved to be a high-quality design itself. Though never attracting great sales, the Caesar would prove to be relatively popular in the Capellan March, among Lyran units on the Clan front, and with both FedCom-employed mercenaries and the Com Guards. Johnston attempted to redress its mediocre sales in the wake of the FedCom Civil War, developing two new variants intended to focus specifically on the qualities desired by the Lyran Alliance and Federated Suns. The resulting upswing in sales saw the Caesar in increasing use among those opposing the Word of Blake during the Jihad, with the LAAF in particular adopting the design almost as a means of honoring the assassinated Caesar Steiner.[4]

Weapons and Equipment[edit]

The Caesar was built to do as much damage to an enemy at as great a stand-off range as possible. The 'Mech therefore carries primarily long-ranged armament. The 'Mech also uses an 280-rated XL engine and sixteen double heat sinks, both of which save significant amounts of weight, in order to carry as many weapons and as much armor as possible. The 'Mech utilizes CASE to protect against ammunition explosions should an enemy be able to breach the ten and a half tons of armor that protect it.[4]

The primary long-ranged weapon on the Caesar is a Poland Main Model A Gauss rifle that can shear off just under a ton of armor with each shot, supplied with two tons of reloads. This is backed up at long ranges by a Johnston High Speed ER PPC, which can do two-thirds of the damage of the Gauss rifle but is not dependent on limited ammunition. For close-range engagements, the Caesar carries four Sutel Precision Line medium pulse lasers, two of which are rear-mounted, allowing it to put up a crippling defense against any enemies that can get close to the 'Mech. The large volume of heat sinks carried ensure the Caesar can fire all its weapons while hardly breaking a sweat, making it a popular choice for missions in areas of extremely high temperatures.[4]


  • CES-4R 
    A variant that first saw action during the Jihad, the -4R attempts to improve upon the -3R variant marketed in the Federated Suns. Designed with short-range combat in mind, it drops the rear-facing pulse lasers and three heat sinks in favor of additional armor and three ER medium lasers; the armor is upgraded to regular ferro-fibrous. MASC enables the Caesar to close more quickly and bring its snub-nose PPC to bear.[1] BV (2.0) = 2,024[6]
  • CES-4S 
    The -4S variant, that first saw use during the FedCom Civil War, is intended for close-range combat. The vulnerable XL engine has been replaced with a sturdier light fusion engine, and has been redesigned to use an endo steel internal structure. The 'Mech is armed with a heavy Gauss rifle as its primary weapon. This is backed up by a large pulse laser, two medium pulse lasers, and a pair of ER medium lasers.[4] BV (1.0) = 1,439[3] or 1,415;[7] BV (2.0) = 1,739[8]
  • CES-5D 
    This Dark Age era variant is protected by hardened armor, carries Clan-spec weaponry, and is capable in physical combat thanks to talons and triple strength myomer. As of 3150, this design only exists on the drawing board, having been planned for production on New Avalon before that world's fall to the Combine.[9]
  • CES-5R 
    An actual production version of the 5-series Caesar, the 5R is clad in hardened armor and equipped with standard Inner Sphere weaponry. The CES-5R is armed with a Snub-Nose PPC, a CASE II-protected Gauss Rifle with two tons of ammunition, along with two pairs of ER Medium Laser, one pair facing front and the other facing rear. In 3148, the CES-5R defended New Syrtis against a Capellan invasion force. BV (2.0): 2,192 [10]

Custom Variants[edit]

  • CES-3R Archangel 
    The personal 'Mech of Marcus GioAvanti, commander of Avanti's Angels, all of Archangel's weapons are upgraded to Clantech equivalents except the rear pulse lasers, the right arm medium pulse laser is moved to the left arm and an extra Clan medium pulse laser added to the center torso. The resulting weight and space saved allowed the mounting of an extra double heat sink as well as additional ton of armor. BV (2.0) = 2,098[11]
  • CES-3R Gertrude 
    The personal 'Mech of Lt. Hannah McQuarters of the 1st Kestrel Grenadiers, all of Gertrude's medium pulse lasers were removed and replaced with eight forward facing ER medium lasers, two in each arm, two in the center torso, and one in both left and right torsos.[4] BV (2.0) = 1,833[12]

Design Quirks[edit]

The Caesar has the following Design Quirk:[13]

Related BattleMechs[edit]

  • Cataphract - Captured in large numbers during the Fourth Succession War, along with the main factory, the Cataphract was used to shape the appearance and weapons loadout of the Caesar. Cataphract 'Mechs were also used in testing.[4]

Notable Pilots[edit]

See Category:Notable Caesar Pilots



  1. 1.0 1.1 1.2 1.3 1.4 Technical Readout: Clan Invasion, pp. 152–153: "CES-3R Caesar"
  2. MUL online date for the Caesar
  3. 3.0 3.1 Combat Operations, p. 131
  4. 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 Technical Readout: 3050 Upgrade, p. 77
  5. Record Sheets: 3050 Upgrade, Inner Sphere, p. 180
  6. Record Sheets: 3050 Upgrade, Inner Sphere, p. 181
  7. Record Sheets: Upgrades, p. 117
  8. Master Unit List: Battle Values, p. 75
  9. Technical Readout: 3150, p. 223
  10. Recognition Guide: ilClan, vol. 26, p. 13
  11. Record Sheets: 3050 Unabridged (Inner Sphere), p. 183
  12. Record Sheets: 3050 Unabridged (Inner Sphere), p. 184
  13. BattleMech Manual, p. 90: Design Quirk Table - Caesar