Picking builds before PvP missions

Ordinarily I would say we don’t need this feature, but there are a few weapons that are almost useless on one map.
I know nests are still remembered as an annoying plague, but I still like playing them post-nerf, except when that one map comes up.

Edit: maybe that map could be improved with a longer approach to the central warehouse, with cover along that approach. I definitely think it needs to be reworked for a lot of reasons.