the ingame footage they showed reminded me of the Far Cry game - the later levels that were flooded with mutants and when all sneaking and slow moving was gone and the gameplay pretty much degenerated into a stupid frenzy. I loved the early outside levels of Far Cry, but found it dissapointing to see how gameplay detoriated because of this silly idea with the mutants. they should have sticked with human mercenaries exclusively.
Maybe I get Stalker in a year for 10 Euros
Or better I just see the film again. Then it is even free (have it on DVD and VHS as well).