Thats where im stuck on now and I've been consistently getting past before. its probably that dam boss that keeps nuking nearly the entire map and shooting cone lasers. Everytime she does it kills off my units that actually do the damage like my TDs and Su-51 so Im stuck with Tiger I, Tiger P tanking but with no damage support. After all that they just snowball and become unstoppable because any kind of damage unit I get up gets nuked
Seren's skins were not what i was expecting lol