The ACR is an assault rifle that was set to appear in Tom Clancy's Rainbow Six: Patriots up until its cancellation. This is so far the first and only time the ACR was seen in the Rainbow Six universe.
Tom Clancy's Rainbow Six: PatriotsEdit
The ACR was a weapon set to appear in Tom Clancy's Rainbow Six: Patriots before its cancellation. The ACR was seen being used by the player character after rappelling onto the bridge.