+New weapon: ARC-921S Railgun
+New Railgun Ammo Types: 16x45mm Slug, 16x65mm Slug HVAP
+New M393 Ammo Types: 762x51 Hybrid, 762x51 HVAP, 762x51 HP, 762x51 SB

New Railgun is significantly better than the old railgun and fixes issues with the original, it's ammo types are also much nicer with it's HVAP ammo being much more effective against vehicles and the Slug rounds being much nicer to use against infantry.
New M393 Ammo Types are much nicer than standard ammo types and take it from the literal same stats as an MA5 to a weapon in it's own class. Details below:

General Changes:
Higher capacity ammo for all except Shield Breaker ammo
Higher Velocity than standard ammo

Hybrid: High Pressure Hybrid Cased Ammunition
+ Moderate Damage
+ Moderate Velocity
+ Moderate Caliber
+ 20 round mag
HVAP: High Velocity Armor Piercing Ammunition
- Lower Damage (still higher than standard ammo)
++ High Velocity
++ High Caliber
+ 20 round mag
HP: Hallow Point Ammunition
++ High Damage
- Low Velocity
-- Very Low Caliber
++ 25 round mag
Shield Breaker: Shield Breaker Ammo
+ Moderate Damage
+ Moderate Velocity
-- Very Low Caliber
- 15 round mag
- Heavier Magazines
++ Extra Shield Damage (edited)
[9:23 PM]

+Tranquilizer rounds now available for all OPTRE weapons that load 40mm grenades including standalone grenade launcher primary and secondary

-added covenant props