Well a few years ago(the first time I played FEAR), bullet time is something extraordinary. But now... Well, let's say that it's not impossible anymore doing that with 3DGS(even with A6)...

Sluggish zombie still fun especially when , let's say, 50 zombies reaching their hands for you, and you only have a clip of 9mm handgun. So maybe it will be more to survival game instead.