Warzone should include a tab on the REQ screen that shows your favorite/ preferred loadout and power weapons.
For example, my main loadout in Warzone is a Sentinel BR with a laser Sight and an Recon AR with laser sight. The problem though is that I have at least 14 AR REQ cards and searching for the one I want can get tedious at times. Thankfully I don’t have that many BR or SMG cards, but this is only sure to get worse throughout the game as I earn more loadout weapons (There are what, 27 BR and 27 AR possibilities?). It should be easy to add a favorites section to the right of “power ups” that you can set yourself. So maybe you’d press ‘Y’ on your favorite Battle Rifle with the energy bayonet and then it would show up on the favorites screen so that you wouldn’t have to sift through 26 other cards.
You could also add power weapons or vehicles . . . I guess anything into your favorites. I was just thinking of the loadout weapons specifically. It would just make finding and picking your most used/ favorite REQ’s easier.