Cheats:

Disable Heat Death:
To disable heat death (not exploding when you overheat) do the following. Take a mech that overheats by shuting down or explodes when perfoming an alpha strike. As soon as you do the alpha strike, quickly use your coolant by pressing the F key. You should recieve a message that says, "Heat death disabled."

Easier Salvage:
To salvage enemy mechs easier all you have to do is to shoot off one of the enemy mech's legs. An easy way to do this a group a lot of medium pulse lasers together and fire them at one leg. NOTE: This trick doesn't always work, but it does increase your chances for salvage.

Video Select:
To view any of the videos from Mech Warrior 3, open "My Computer". Then right-click on the Mech Warrior 3 CD, then click on open. Then go into the video folder. Just double click on the video you wish to view.