Most Efficient Way to Earn REQ Points?

I understand that the old method was WZ Assault, but with the release of WZ Firefight and other updates to existing gametypes, has it changed? Is the REQ farm still in WZ Assault? Just wondering because I just now started getting Ultra Rares and I need those gold packs desperately. I would appreciate any feedback, thanks for reading!

There is no efficient way of getting req points.

Well, firefight beta is gone until the end of summer, but I would still say Warzone Assault is the best way to get RP the fastest.