From 2v2 perspective.
Most of time I use sweepers to detect mines/demos and to have faster tank repair. Rarely panzerschrecks only vs USF (no mines) to help fight stuarts. I would either give them 2xshrecks - 2 shreck on expensive not spammable platfrom with high popcap - or let them have minesweepers+1shreck (large muni cost, lose their DPS).
What I dont understand why spios can't have 1 shreck and sweeper, while Rear Echelon/Royal Engineers runs with sweepers and 2 bars/zooks/bren/piat. Also before panzerschreck change, sturmpios could have flamer+sweeper - now they can't
