Nukeops Weapons Rework

The following changes have been made:

- C4 now creates a small explosion on detonation, as well as removing what it's planted on.
- Stechtkin pistols will now fire properly.
- Nukeops weapons are now reworked as follows:
      - Nukeops now start with a Stetchtkin instead of a C-20r
      - The Nukeops locker now has only 2 C-20r mags.
      - Nukeops now have the following items available for purchase:

C-20r - 6 TC
L6 SAW - 10 TC
C-20r Mag - 1 TC
L6 Mag - 3 TC
Stechtkin Silencer - 1TC
Advanced Medkit - 3TC

These items are available for Nuclear Operatives ONLY, and will not be obtainable in normal traitor rounds. The prices are subject to change as needed.