What do you think of the Survival mode? I think they messed it up. There is no tactic that works, you need to keep a tight group and fire in four directions, then a Tank appears and you have to scatter. Only found the Airport level remotely playable, you have one direction to defend, even then, once Molotovs run out the Tank becomes a bind.
Shame they didn't do it more like the Nazi thing at the end of World at War, allow you to make defences.
It deffo needs the option to turn specials off or at least the Tank off.