This bug is quite old but I never seen a report about this.
The problem: By ALT-TABing the game or switching from window mode to full screen mode it is possible to corrupt the mech textures and even make them glow in the dark. The effect lasts until the mech is hit but it is possible to trigger it again.
The corrupted mechs can be seen very easily even in foggy and dark map from distance so the bug is exploitable.
Examples:
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System specs:
WinXP, Dual core E6600, AMD5870 with latest drivers.
Edited by EvilCow, 11 December 2014 - 10:56 AM.