GGMAX Bug - NPC's not firing weapons

[extremestrategy]

Certain weapons don't work with NPC's, the NPC will hold the weapon, and can melee attack with it however they cannot shoot it, the weapons effected are, the shotgun, magum pistol, snubnose revolver, and the patrol rifle, all other weapons can be used by the NPC with no problems. I'm currently using the EXP build.

[Necrym59]

Verified in EXP and DEVTEST Versions
NPC's go through the motions of firing but no actual gunfire or damage received

[synchromesh62]

This has been happening to me for over a month but only on blank levels.
Nobody else seemed to have the issue back then ?