Hines said, “We weren’t happy with the game that was being made. We decided that it wasn’t Doom enough and needed to be thrown out and started over. Some folks left and some faces changed at the studio. Out of that change — which was not easy for those guys to go through — some amazing things happened. You can probably close your eyes and imagine a ‘Call of Doom’ or a ‘BattleDoom’ game, where it starts to feel way too much like: ‘Wait, this doesn’t feel like Doom, it feels like we’re playing some other franchise with a Doom skin on it.”
Basically, his main gripe was that the game did not carry the overall feel of Doom. Looks like this is more a Call of Duty than Doom, and thankfully, they did not go ahead of it just for the sake of raking in a profit (chances are the game would have succeeded anyway thanks to the weight of the franchise itself) but rather, have a conscience to deliver quality to the masses.