A new Call of Duty 4 multiplayer gameplay trailer is entertaining us with bullet penetration fun that Infinity Ward is squeezing into the sequel.
Watch as a player lurking in the top floor of a building is surprised by a spray of bullets bursting through the concrete floor, see projectiles ripping through wooden fencing and more.
This is the second multiplayer gameplay trailer that's sneaked out of Infinity HQ, the first revealing the mysterious "coward's way out" feature.
In CoD 4 single-player you're faced with two storylines - one from the viewpoint of an SAS trooper and one from a member of US elite fighting force Force Recon - that interweave during the course of the game and reach a climax in Russia.