zeogold: ...I can't tell whether that's good or bad.
Just attempted the first level on medium difficulty. Wow, is this game ever different from what I remember. They've made some serious improvements to it since the original. Gone is the old id Software 2.75D ray-casting engine, replaced with OpenGL or D3D with full mouse-look capability which is rather pleasant to say the least. Takes some getting used to the high speed of these older games even when just walking, but I guess that's a sign of the time. :) Got my ass whomped twice which was a bit of a surprise, but then I haven't been playing FPS for a while, especially not old-school 90s FPS.
I found that I have been spoiled by auto-save in modern games also. Die, and you load from your last manual save or start at the beginning again. Gotta remember to save! :)
Nightdive did a pretty decent job on this.