I think the more open world format of Guerilla was a better method. If they'd combined that with an increase of health, the cool weapons of armageddon and most importantly, the reconstruct tool, as well as based more missions inside building areas, it would have been an amazing game.
I was in the queer position where I find the demo of Guerilla more entertaining than the game, because on the demo there's less consequence to death and it's easy to reset and destroy another building again. They should have probably made the map smaller too