The MechWarrior 4: Inner Sphere 'Mech Pack is a collection of maps and equipment for MechWarrior 4: Vengeance and MechWarrior 4: Mercenaries. The expansion pack includes the following in this iteration:
Maps
- Colosseum
Weaponry
- Heavy Gauss Rifle
Technology
- IFF Jammer (Identify Friendly/Foe)
BattleMechs
- Zeus (80 tons)
- Dragon (60 tons)
- Highlander (90 tons)
- Hunchback (50 tons)