Vanilla weapon rebalance and small fixes addon

This addon modifies the broken iron sights for the spas12, and extended the weapon modification, and also some little changes to the VSS and the VAL.

Changelog.

--Version 1:

-SPSA-14 broken sights is fixed, thanks to team epic for the fix.

-Extended weapon modification, now you can add a silencer for your Akm74u or just you can add a 'nade launcher for your IL86.

-VAL and VSS bullet speed increased.

-Weapon hit probabilty increased now to 100% so no more bullet sponges and its not neccesary to play in master.

-Increased a little bit weapon damage to some guns.