It should ask which DLC to pull from after you choose the faction. The DLC chooser should show '@CUP Weapons'. It will use weapons from the chosen faction and from the DLC. I think the weapon spawn rate in the crates is a little too low currently, but some weapons should be able to be found. In the first zone, it will only be light weight weapons like pistols and sub-machineguns. The larger weapons start appearing in later zones.

That's how it's supposed to work anyway. When I tested it out just now I saw a cup sub machine gun, some cup clothing and hats. So I think it's working.

yes but my question is once that i reset my game but im wondering how to put cup in weapon spawns

Once you start playing, it continues the same game (so the same factions/dlcs as the last time). To clear it and start a new game, go into the 'parameters' in the upper right of the slot assignment screen before you start the mission. There is a parameter at the top called "Force a new game". That will erase the old saved game and start a new game which should allow you to choose factions and dlc.

and mods

how do i select dlcs