Here's a hint for players who are on the PRF (Pacific Rim) faction or people who have stolen the mechs with assault rifle or rapid fire (200 AR, 270 AR, 315 RF). Normally you can only fire three bursts and your gun reloads but using this trick you can fire three bursts fast.

As soon as you fire your gun quickly press the magazine change button and your gun can fire immediately again. This eats up your ammo but that's no problem since you can get more at a supply station.

Be careful though, if you do this often other people ignore you online.

Due to Line of Contact being discontinued, there is a code to unlock all parts, machines, maps, and stuff for System Link Free Mission play and Free Mission Xbox Live play. You must have the update/patch for Steel Battalion Line of Contact from Xbox Live before this code works.
(Source - http://www.capcom.com/steel/command.html)

Input this code from the controller settings in the configuration menu:

Press F1 + Tank Detach + FSS + Override + Night SCope together then release.

Press F1 + F2 + F3 + Tank Detach + FSS + Override + + Night Scope + Line Color Change together then release.

Press F1 + F2 + F3 + FSS + Override + Line Color Change together then release.

Press F1 + F2 + F3 + FSS + Override + Line Color Change together (a second time) then release.

Press F1 + F3 + Tank Detach + FSS + Override + Night Scope + Line Color Change together then release.

Lastly press EJECT-CMD and an odd sound will let you know the cheat worked! Notice the button presses should spell out TEKKI in Union Jack. If it's too hard to follow, look at the center block panel as an arrangement of nine buttons and press the following simultaneously:



Don't forget to press EJECT-CMD at the end to enter the code. Notice the button presses should spell out TEKKI in Union Jack.