MechWarrior 2: 31st Century Combat

You are the genetically engineered Clan Mechwarrior. The Clans are invading the Inner Sphere. Join either the Wolf Clan or the Jade Falcon Clan as they pursue their own agenda against the Inner Sphere and other Clans. Take your advanced Omnimechs into battle against all comers.

Win high warrior ratings (by using less mechs or smaller mechs than needed, completing secondary objectives, etc.) and you'll get chance at a promotion trial where you face superior odds in an arena. If you win, you advance in rank.