UNITED STATES
7.62mm Browning: Universal/Stealth
12.7mm M2 Browning (early war): Ground Targets/Stealth
12.7mm M2 Browning (mid+late war): Universal/Stealth
12.7mm M3 Browning: Universal/Stealth
20mm T31: Air Targets/Stealth
20mm AN/M2: Air Targets/Stealth
20mm AN/M3: Air Targets/Stealth
20mm Browning-Colt Mk 12 Mod 3: Air Targets
20mm Mk 11 mod 5 (gunpod): Air Targets
20mm T-160: Air Targets
20mm M24A1: Air Targets
20mm M39A1: Air Targets
20mm M61: Air Targets
37mm M4: Ground Targets
37mm M10: Ground Targets
75mm T13E1: Ground Targets
75mm M10: Ground Targets
​
FOR BOMBERS / ATTTACKERS (TURRET):
7.62mm Browning: Armored Targets
12.7mm M2 Browning: Universal
GERMANY
7.92mm: Universal/Stealth
​13mm MG 131: IAI/Stealth
​15mm MG 151: Air Targets
20mm MG C/30L: HEFI-T
20mm MG FF: Air Targets
​20mm MG FF/M: Air Targets
20mm MG 151: Air Targets/Stealth
30mm MK 108: Universal/Stealth
30mm MK 103: Air Targets
37mm BK 3,7: Air Targets
50mm BK 5: Air Targets (HVAP against grounds)
50mm Mk.241a: Air Targets (HVAP against grounds)
75mm BK 7,5: Air Targets (HVAP against grounds)
FOR BOMBERS / ATTTACKERS
7.92mm: APT
13mm: Default
20mm: Universal
BRITAIN
7.7mm Vickers E: Universal
​7.7mm Browning: Universal
20mm Hispano Mk.I: Stealth
20mm Hispano Mk.II: Air Targets
​20mm Hispano Mk.V: Air Targets
30mm ADEN: Air Targets
40mm Vickers S: Air Targets
47mm Vickers P: Default
57mm Molin Class M: Default
​
FOR BOMBERS / ATTTACKERS (TURRET):
12.7mm M2 Browning: Universal
7.7mm Browning: Universal
7.7mm Vickers K: Universal
20mm Hispano Mk.V: Universal
RUSSIA
7.62mm: Universal
​12.7mm: Air Targets
​20mm: Ground Targets/Tracers (Stealth are weaker)
23mm VYa-23: Universal
23mm NS-23: Air Targets
23mm NS-23K: Air Targets
23mm NR-23: Air Targets
23mm GSh-23L: Air Targets
30mm NR-30: Air Targets / Ground Targets
37mm: Air Targets
45mm NS-45: Default
FOR BOMBERS / ATTTACKERS (TURRET):
7.62mm: Universal
12.7mm: Universal
20mm: Air Targets
23mm: FI-T
JAPAN
7.7mm: Universal
12.7mm Ho-103: Air Targets
13.2mm type 3: Ground Targets
20mm type 99: Universal
20mm Ho-3: Universal
20mm Ho-5: Universal
20mm JM61A1: Air Targets
30mm type 5: Tracers
30mm Ho-155: Tracers
37mm type 94: Default
37mm Ho-203: Default
40mm Ho-301: Default
57mm Ho-401: Default:
75mm Type 88: Ground Targets
FOR BOMBERS / ATTTACKERS (TURRET):
7.7mm: Armored Targets ( except Te-1: Universal)
7.92mm: Armored Targets
12.7mm: Universal
13mm: Universal
20mm: Air Targets
ITALY
7.7mm: Universal
12.7mm: Air Targets
20mm: Air Targets
​102mm: Ground Targets
​
FOR BOMBERS / ATTTACKERS (TURRET):
7.7mm Lewis: Universal
7.7mm Breda-SAFAT: Universal
12.7mm Breda-SAFAT: Universal
12.7mm Scotti: Universal
FRANCE
7.5mm: Universal
20mm Hispano HS.9: Universal
20mm Hispano 404: Universal​
20mm M50: Air Targets
30mm DEFA: Air Targets
​
FOR BOMBERS / ATTTACKERS (TURRET):
7.5mm MAC 1934: Armored Targets
7.5mm Mle 33: Armored Targets
7.5mm Mle 1923: AP-T
20mm Hispano 404: Universal
SWEDEN
Air Targets