This is a repost from the old forums: haven't tried recently because it hasn't worked in a long time. mount 3 grenade launchers in an APC, bind them all to fire primary or secondary. they will only fire 2 of 3, wasting the other slot
Works for me. I usually bind all 3 grenade launchers to secondary fire and all 3 fire as expected. Could something be going wrong when you are binding the slots?
could be that your overheating and only launch 2 grenades since theres not enough heat to launch the third, or you simply forgot to bind the third gl launcher to a fire key?
I honestly haven't had time to re-test this bug. I will post when I get time unless someone else verifies first.
i'v seen this bug , it sometimes happens - sometimes not it looks like the 3rd grenade hits the second while being fired, it reabounds and you can't see where it goes off.