As quoted from Mechwarrior 4: Mercenaries...

CLASS: Inner Sphere Heavy

ARMOR TYPE, TONNAGE: Ferro Fibrous, 13.0

INTERNAL STRUCTURE: Endo Steel

MAX SPEED (KPH): 75

GROSS TONS: 75

WEAPONS:

    Med Pulse Laser (3)
    MRM 20
    LBX AC 20

COMPONENTS: ECM

JUMP JETS: Yes

FIELD NOTES: Similar to the Argus, the Thanatos was originally intended as an OmniMech, but the high cost of production curtailed interest. After engineers revamped the ’Mech to a standard design, it won approval. Although it is slower than comparable heavy ’Mechs, it has good firepower and Jump Jets for maneuverability. Both the Lyran Alliance Armed Forces (LAAF) and the AFFC use it to replace older heavy ’Mechs in nearly every role from close-range brawler to long-range support. It is probably best suited for the front lines.