Open issues:
- grep for TODO and FIXME
- when shot origin is inside warpzone, nex shot fails (and is even drawn in totally wrong direction). WHY? Possibly v_forward got lost?

Weapon support:

- laser: YES
- shotgun: YES
- uzi: YES
- grenadelauncher: YES
- electro: YES
- crylink: YES
- nex: YES
- hagar: YES
- rocketlauncher: YES (except for trail bug)
- porto: YES (bwahahahaha)
- hlac: YES
- minstanex: YES
- rifle: YES
- fireball: YES (BFG effect cannot work through warpzones by design, so it's not available through warpzones)
- hook: YES

- tuba: NO (sound)