Rebalanced attacktypes so that difficulty is more in line with vanilla.

BALANCE:
-Reworked DEVGRU XP requirements(by Ryuk)
-Increased time to aim for all close range attacktypes
-Tweaked GPMG mounted attacktypes(lower accuracy, shorter bursts, longer time to aim)
-GPNVG price reduced(25->20)

MISC:
-HK416A5 10.4" renamed to HK416A5 11" with appropriate icon changes
5/25/2022 v0.9.5 REBALANCE PATCH 2

FIXED:
-M203 model not appearing for rifles with UBGL attachments(found by PHILXIQUSI and AnthonyNonStop)

BALANCE:
-Tweaked MK12 attacktypes, ammo, and range values to make it more effective in medium-long range situations