Wehr needs some global improvements with BP attainment. For example, for unlocking the LMG42, they need BP1. This is already live
MAYBE, at BP2, they could get a 10% discount on reinforce cost and/or 20% reinforce time discount. At BP3, I'd leave the medkits free. Voila, great incentive to get BP's, a good premium for late game, and that's not asking that much, I think.
Every faction needs more global upgrades. That's what gave VCoH factions a lot of variety, for only 3 commanders.