I was pretty impressed at the start. The mod jumps right into the action with snipers, combine, dropships, etc. No tedious learning curve, since MOD-players are experienced players. The good design puts monsters below you, under you and make them flank left and right. After that the MOD sadly starts to decline. Before the zombie part you have to shoot the energy ball to unlock the door. There is no reason for that advanced security to be there and what makes it even more strange is that the gravity…