What happened to the zombie AI? On the last compound invasion they completely ignored my survivors and instead focused on destroying every single security structure in my compound.
A great way to survive longer in the outside areas is to hit the bosses with rage injection. It distracts a lot of nearby zombies and it takes a lot of the pressure off of you. Just make sure you stay out of its way.
The units aren't really scaled right. I went through most of the allied campaign spamming rangers. They're cheap, fast training, and high damage, which make them more effective than spending the time and money on higher-tiered units.
After killing over a thousand of their soldiers, and them upgrading their armor to the point that they are just walking hunks of metal, you'd think that they would finally upgrade their weapons to water guns.
To beat mission ten, first, you have to shoot the box leaning against the wall of the building on the right. When a guard walks out, shoot his leg. The door of the second building will open up. There is a box on the right side inside the building. Shoot the box to stop the door from closing.
If anyone is having trouble with the defend spots, it's possible to use the car as a barricade. Also, you can make sharp turns while driving by using the brakes, just make sure you practice that a bit, or else you'll end up running into walls.