1. Upgrading cite centers technology can be researched for only one city center at a time.
2. So I moved unit on infested's eggs which act like a mines and there already was enemy unit there. My unit happen to stand on it like normal title and enemy unit afterwards couldn't move, attack and be attacked, it had its aura but wasn't responding to my units aura and was unkillable. Like that I lossed a mission
3. Partizan's C4 can't be used at buildings.