D20Modern: DOOM themed game

I'm considering starting a DOOM styled game and was wondering in what level of interest there is in such a game. Before anyone asks I will be including monsters from DOOM (as close as possible difficulty wise as I can make them) but given that I may be using DOOMs 1-3 the "ai" may not be the same as in the game but I'll do my best, nor will I necessarily add all of them.

The main idea is 1 of 2 things.

1)

You are in the middle of your daily routine, wither that be patrolling or doing experiments, when the alarm sounds moments before the power starts to fail. You must traverse the complex to the escape vehicles or die.

2)

See above for the overall idea however either the vehicles are gone or damaged beyond repair. How long can you survive on limited supplies?

I haven't really worked on this much yet (obviously) but I'm open to suggestions. The game will get progressively harder both on finding ammo and battle difficulty.

Should I get at least 6 positive posts I will begin work on the game in full.