I get this game is supposed to be unfair but this is too much. Every single game is lost the exact moment either a Skdf 222 or a Flak 38 enters the map. No amount of artillery, bazookas, concentrate fire , or yolo strats kills them. I don't remember this game being so broken back when I played and enjoyed this. I literally saw a flak 38 that came on wave 2 survive 22 waves. One gunner was promoted to corporal while the other became a sergeant. This is no longer unfair, it's unmanageable. It doesn't matter how good your men are or how well setup your defense is. The moment these things arrive multiple people are instakilled and everyone else forgets how to use their brains. /Rant
If you have issues with buildings not building or buildings spawning the wrong objects make sure you only have 1 save on your name. Multiple saves seem to cause the game to glitch a lot. At least it worked for me. Use different websites for each save and it should be glitch free.