Bad Company 2 - Underbarrel 40mm Grenade Launcher Unable to Break Walls

In the original Bad Company 2, the underbarrel 40mm grenade launcher attachment for assault rifles could destroy destructible walls with a single grenade hit. In Bad Company 2 Portal for 2042, this is not the case. The underbarrel 40mm grenade launcher fails to destroy the wall. Please fix this! Thank you.