First of all, check if your companions are hurt (crippled body parts, low hp). Most of the time it causes them to run. You should change "when to run" (or smth, i dont see this options now) to never or when hurt a lot. Change target for ranged fighters to "The weakest" (you want them to take them fast, right?) and Sulik should attack "The closest" (because he is melee and he must run a lot). Set distance to medium or something like that (not close, not far). Also you should change Suliks weapon preferences to Melee and other chars to None (they wont i.e. throw grenades or start fighting with crappy knife when low on Action Points). Vic is good with pistols/rifles. You can give him Hunting Rifle, later Sniper Rifle, Gauss Rifle. Sulik crashes skulls with Super Sledge. Cassidys fav weapon is Pancor Jackhammer... I personally dont get Marcus, because later he cant wear Power Armor...