That is pretty much how the game felt, it felt like an actual invasion of a defensive position, it helped that my friend didn't play to win by just flying a thirster or turbo boosting some bikes behind my lines and grabbing 9vps on turn 3. He wanted to systematically overrun my defensive positions a line at a time. Turn 4 was amazing though, it was at the stage where I had to counter attack or lose everything so had a glorified charge of Ultramarines into the Chaos forces, my Captain was cut down by his warlord and eventually the counter attack turned into a rout.