Huge stalker fan here. i spent alot of my time modding the xray engine for more realism aspects. Just wanted to say great job, downloaded the mod, checked it out, have to say its great! played around in the mission editor a bit, i must say i love the bloodsuckers! just wish they had more variety of sounds to make. there really isnt much to "not" like about this mod / pack. Great job, i may be sending you a pm DAP.