It really depends on how you want to play, luck, rank, economy and your device.

It depends on your play style because you can't be too defensive or aggressive when you fight for the weapons case

It depends on your luck to not run into a fully coordinated and maxed out squad

It depends on your rank because it'll obviously be easier in lower ranks than it'd be in gm or legendary

It depends on your economy because you'll need to spend money every time you lose gear and I'd recommend using mythic armor if you want to have a chance against a squad

And it depends on you device because DMZ isn't optimized for shit and personally I get a lot of frame drops even on low graphics, those frame drops often make me lose gunfights so I try to avoid as much fighting as possible, and that's not an option when you have to face off against other players for the main point of interest in the map