S.T.A.L.K.E.R. GAMMA: 1-Life Invictus challenge runs

I need to use all the green-barrel-weapons I find, until 3 weapon-slots are full (primary, secondary, melee). After this no new guns are allowed. The starting weapon has to be replaced when the last slot is full. Mod for one-click disassembly: https://www.moddb.com/mods/stalker-an...