i.e. PC freezes up? Does it not do the same without anything being textured 'sky'? Try leaving the "sky name" field blank, it'll default to the rocky day one. Nice pic: didn't know there were forward-swept wings around yet :
there is an entity, something like info_player_weaponequip, that allows knives only. I've used it many times, quite a while ago. 100% positive. Got the "Advanced" FGD?
'Cos they're lazy: why did a man who should never be able to be killed need death animations/code? Think about it: in HL he's always behind glass, the only time you are face-to-face, "I took the liberty of relieving you of your weapons"...