[Coriolis]

Answers to some of your questions:

The D-Day level would take you more than a minute to walk through if nobody was shooting at you.

It's an MG42. The MG42 does fire full auto if you tell it to, but it also only fires when the player presses fire. If it appears semi-auto, it's because the player was firing in bursts.

The delay between shooting the barrels and the explosion is probably the delay you see in several places of the movie because it was made before we added precaching. Basically, in the demo it loads all of the graphics and sounds for the explosion when they are first used, so that you see the computer wait for the hard drive to finish reading. This stuff is now done when you load the map, so you don't get that sort of hitch any more.