Arma 3 of course
and the following mods:

Exile
ASDG Joint Rails
CUP Weapons
MAS Vehicles
MAS Weapons
RHS Armed Forces of the Russian Federation
RHS United States Armed Forces
HVP Mod (only downloadable via Arma 3 Launcher)
NIArsenal Mod
TRYK Mod

I recommend downloading them and starting the game with the Arma 3 Launcher.
Of course you can install them manually in your A3 mod folder.
In case of that add the following parameters to your launch parameters:

-nosplash -mod=@Exile;@HVP;@CUP_Weapons;@NATO_Rus_Weapons;@NATO_Rus_Vehicle;@ASDG_JR;@RHSAFRF;@RHSUSAF;@TRYK;@NiArsenal