Okay, here's my first stab at the tractor. With environmental sealing, 75 tons is the optimal tonnage:
Mars Train
Mass: 75 tons
Tech Base: Inner Sphere
Motive Type: Wheeled
Rules Level: Experimental Tech
Era: Age of War/Star League
Tech Rating/Era Availability: D/C-D-C-A
Production Year: 2750
Cost: 2,767,188 C-Bills
Battle Value: 310
Construction Options: Fractional Accounting
Power Plant: 280 Fusion Engine
Cruise Speed: 43.2 km/h
Flanking Speed: 64.8 km/h
Armor: Standard Armor
Armament:
None
Manufacturer:
Primary Factory:
Communications System:
Targeting and Tracking System:
================================================================================
Equipment Type Rating Mass
--------------------------------------------------------------------------------
Internal Structure: Standard 32 points 7.500
Engine: Fusion Engine 280 24.000
Cruise MP: 4
Flank MP: 6
Heat Sinks: Single Heat Sink 10 0.000
Control Equipment: 4.000
Lift Equipment: 0.000
Armor: Standard Armor AV - 80 5.000
Armor
Factor
Front 20
Left/Right 20/20
Rear 20
================================================================================
Equipment Location Heat Spaces Mass
--------------------------------------------------------------------------------
Hitch FR - 1 0.000
Hitch RR - 1 0.000
(R) Communications Equipment (1.0 tons) (3.0 tons) RR 0 1 3.000
Infantry Compartment (3.5 tons) BD 0 1 3.500
2 Paramedics BD 0 2 0.500
2 Cargo Containers BD 0 2 20.000
BattleForce Statistics
MV S (+0) M (+2) L (+4) E (+6) Wt. Ov Armor: 3 Points: 3
4w 0 0 0 0 3 0 Structure: 3
Special Abilities: ENE