* Gustav gunboats were one of the mainstays of the Luftwaffe's defense of the Reich against Allied bombers, and many techniques were used to knock down the attackers. Gustavs were even used to drop fragmentation bombs with time-delay fuze's to break up the formations, but this approach was not very successful.
An article about the me109g6 carrying time-delay fuze bombs, was asking krusty1 about this earlier and wasn't able to dig up any research on this, I know it worked, apparently 109s would drop these bombs 500 feet above a buff formation and it will explode, destroying 1-2 buffs in formation. I'm guessing approach was not successful based on fact the 109s were sitting ducks for escorts, but what about where buffs didn't have escorts? I think a 250kg bomb with time fuze delay would cause serious havoc on bombers in Aces High.