Changeset 1130 in eirsvn

[fixes#103]
[fixes#96]

AB T1 Improved Defenses
AB T2 Modified Equipment

fixed AVRE building crit
reduced huge cover crater 75mm GMC and leig create
set leig min. range to 10 to reduce the effect of the thing killing itself.

fixed ROO still being affected by wrong ablative plating
fixed bren carrier being affected by commandos T1 scouting vehicles
fallschirmjager sniper now decloaks for a very short amount of time when firing (the tracer wouldnt show up if he stayed cloaked)