Just another excellent endless war game!
One thing I miss is the ability to fight on the axis side/ as an opposing force. But as one medal suggests you're already working on other viewpoints as well. ;) Also seeing as many elements from the Endless war defense game are in here there shouldn't be any reason for you not to make games for the other factions as well.
>Perhaps it's bugged, some trenches in mission 10 required an insane amount of M8 howitzer rounds to be taken out and the Tigers in mission 12 are simply invincible.
Trenches are most vurnable to MG fire or the cannon when firing from behind. Also tigers have the weakest armor on the back and as they were one of the most armored up tanks in WW2 I see no bugs here whatsoever.