Warzone Loadouts

I’ve posted this in the other Halo 5 Forum, but haven’t had any success. When I try to select the “Recon AR”, which I unlocked from a REQ pack, nothing happens and I cannot equip it. The same thing happens with the custom SMG I had unlocked. However, I can select any Basic Loadout Weapon I have (including the regular smg, AR and BR).

Has anyone else run into this issue? If so, what is the fix?

Thanks,

Charles