Press and hold [CONTROL]-[ALT]-[SHIFT], then type:
 
 Code - Result: 
 IY - Invulnerability 
 UO - Unlimited Ammo 
 HF - Heat Tracking Off 
 IB - Destroy Enemy Mech 
 ML - Finish Mission with Success 
 
 Inner Sphere or Clan:
 When it comes to selecting your ideal mech, keep this one 
 thing in mind: Clan is better than Inner Sphere. Ton for 
 ton, component for component, any Clan item outclasses its 
 Inner Sphere equivalent. In the course of the single player 
 game, you start in a Clan mech, and if you play your cards 
 right, you'll have enough Clan mechs and parts to last you 
 throughout the entire game. 
 
 Easy Instant Action win:
 Build a Mech with double Thunderbolts. In battle, run up 
 to your enemy and fire them at his cockpit. 
 This usually works in one or two hits.
 
 Building your mechs tips:
 Here are a couple quick tips that will increase the survivability 
 and durability of any mech you choose: 
 
 1. Forget jump jets.Unless you're an expert, using jump jets has 
 always been a nightmare in any MechWarrior game. Light mechs move 
 too fast and stay in the air too long, and heavy mechs just can't 
 stay up very long. If you get rid of them, you free up a good chunk 
 of tonnage. 
 
 2. If you have to have any Chassis components, go with the AMS 
 or LAMS systems. These help foil missile hits, and when fighting 
 heavier mechs, this is invaluable. The Beagle probe only helps 
 missile-heavy mechs, so only use it for Catapults and the like. 
 
 3. Keep your heat efficiency in the green zone, but just barely. 
 In general, if you know how to manage alpha strike fire versus 
 single fire, you can lose more heat than you make, ensuring a 
 nearly constant fire rate. Too many heat sinks waste space. 
 
 4. Armor only as much as necessary. If your particular weapons 
 loadout can be stuffed into just the torsos or the arms, you 
 don't need armor in the empty areas. They don't particularly 
 affect your vital areas, and you won't lose any weapons, plus 
 you free up space for more ammmo or heat sinks. 
 
 5. Learn to love the PPCs, Flamers, and LBXAC20s. Although a 
 good variety of weapons is necessary for any mech, these three 
 weapons are particularly versatile. The PPC f ries electronics 
 and does amazing damage. It's a great assault weapon and a 
 critical one for many missions. The Flamer does a good amount 
 of short range damage, but also creates a lot of waste heat in 
 the target mech, forcing some opponents to shut down. And the 
 AC20 is the king of damage for in close fighting. If your mech 
 can mount one or two of these characters, and you're going into 
 a tight situation, this is an ace in the hole. Learn to love 
 this weapon.


 Save Weight
 When modifying your mech, get rid of the boosters, as they not only don't
 carry you very far, they often overheat your mech if you're not careful.


 Lancemate
 Never, ever lose track of your lancemate(s). In the fist couple of missions
 you can't control them, but in the few levels following that you can control them
 but they are invincible. After those missions you can still control them, just they
 can be destroyed.


 Invincible
 Having a hard time with a level that you can't beat? Want to be invicible? 
 Well, I have a solution. Start a mission, go to the options menu, and click the
 invincibility box, and presto! You are invincible. If you take damage, and your
 picture in the corner of your screen is all the way red, or whatever color, don't
 worry. You are invincible.