MechWarrior 4: Vengeance

Developed by the creators of the BattleTech® Universe and original MechWarrior® game, MechWarrior 4: Vengeance portrays the players' epic struggles to reclaim their birthright as they command an awesomely armed, 40-foot tall, 100-ton war machine across the remote battlefields of a hostile world.
Packed with intense action, MechWarrior 4: Vengeance places you in command of a legion of BattleMechs in a heroic struggle to liberate an oppressed planet. If you survive, you will have saved the planet. If you die, you die a hero. You will feel fear, but your enemies will know terror!
The MechWarrior 4 trial version pits gamers against deadly enemy AI bots in a wave battle scenario. The AI bots are highly customizable, allowing players to choose how many and which chassis they'll use, as well as the difficulty level at which they will fight.
The trial version features the Frostbite map, as well as four of the 21 'Mechs found in the game. The 'MechLab is fully functional, allowing players to create many variations of these four 'Mechs: the Awesome, Catapult, Uziel, and Raven. The trial version does not have multiplayer support.