User blog comment:Crazy sam10/My views on a MW4/@comment-3171236-20130223181423/@comment-3171236-20130224223257

The MW2 Special Ops missions Bomb Squad and Homeland Security show you what Call of Duty really could be.

Bomb Squad and Homeland Security are, for all intents and purposes, set in Sandbox Levels. Bomb Squad has narrow alleyways and cramped houses, but multiple paths, flanking routes, and no infinite respawning enemies. They lay some weapons out before you start the mission, so you can make the best suited loadout to fit your approach to the mission.

Homeland Security is more open than Bomb Squad, but at a cost. There are multiple buildings to take cover in and set up a defense, but your enemies can come from anywhere. Since the level has 5 waves, each wave with a specific number of enemy forces deployed, the objective is straightforward: eliminate the attacking force. However, you are likely to stay indoors most of the time, as the enemy has a Predator drone for most of the level that will try to kill you if you venture outside. But, they also reward you if you explore around, as in other buildings, they have Sentry Guns, Thermal-sighted Sniper Rifles, and Rocket Launchers.

Another thing about these two: They are based around fast-paced combat, but leave behind extravagant explosions and monster closets in favor of actually giving you open-scale firefights and numerous paths to objectives.

Even if that was just added instead of Tactical Gameplay and all that, this would make a nice COD game.