They should let the main gun be toggle-able, but the barrage can not be used and will not cooldown while it's active. That, or give it a very weak gun like the Panzer IV Commander.
I don't see the point in them making a Tank with Rockets if you only use the Rockets part. Why not a Truck with Rockets if you only wanted the Rockets?
+2

United States
보드카 중대
Heartless Jäger