More zombies!
It helps that I am a huge fan of the zombie genre and this delivers exactly what you would want from a zombie game! It was really cool to see the different kinds of zombies. It doesn't to be that hard, as I got pretty far without even using grenades. Does LMB mean the letters, "L", "M", and "B", or is it abbreviating something? The controls work nicely and I liked how the character could move around well, especially around the trees. Of course, it's awesome fun as always to kill tons of zombies.