I will tell the full story about NPS Secret Strike Unit at comment

Project-55 or the start of the NPS Secret Strike Unit, NPS found at 12/07/1999 by the command of A.C.I. Commander John Cavil ''Raken Nofes''.
About uniform and equipment:
Uniform: Standard M-12 Jacket and Green colour, Green Field Cap/ Green SR-44 Anti-riot Face shield Helmet/ Su-41 Pilot Helmet, BF-9 Full-body Vest, SD-1 Leg Set up
Weapon: NPS-ASD-13, Colt M1911A1, M4A1, Glock 18C, PS90 (Handguard), Kriss Kaig-6
Throwable: M67 Stardard Frag Grenade, M2 Smoke Tear, 9-A0 Flame Grenade
Other supportive item: Stardard M-14 Medikit, Kaig-4 Radio, C14 Booster Set up

Inside the division: ''NPS Secret Strike Unit'' isn't the first name of the Unit, its first name is ''ACP Insurgency'' but the A.T.F. Councils decided to named it is ''NPS Secret Strike Unit'' instead of ''ACP Insurgency''. NPS is based on Vietnamese Special Mobile Police - CSCĐ (Cảnh Sát Cơ Động) at the Field Cap and Anti-riot Face shield Helmet, simple trained but very tactical. NPS-ASD-13 is an assault rifle based on AK-47 and HK416, the first custom gun of the Unit. Project-55 is the fund to support the NPS