This is in the tradition of '28 Days Later' and 'Dawn of the Dead' (as the DVD proudly states) in that, like those horror classics, it has a 'D' in the title; with regards to style, tone, originality, and quality, it bears very little resemblance to either film, the special effects being cheap, the plot stale and riddled with holes, and the outcome predictable. A more accurate description might be 'The Condemned' (the equally dumb Vinnie Jones/Steve Austin flick that came out the same year)—but with zombies.
And yet, despite all of this, I found Doomed to be far more entertaining than I had expected.
The mere fact that director Michael Su isn't striving to deliver anything other than a mindless B-movie frees him from the pressures of doing anything remotely new with the zombie/action genre and allows him to just get on and have fun with things. The film wastes no time with unnecessary build-up, gets straight into the action, and the fast pace is kept going until the end; the fight scenes are impressive for such a low budget effort; and the cast put in surprisingly good performances (plus, there's the added bonus that the ladies are all very easy-on-the-eye).
Admittedly I'd have enjoyed the film a touch more had the gore quotient had been higher, there were fewer shots of the CGI island (which looks nothing like the one on the maps given to the contestants), the use of gimmicky editing tricks had been kept under tighter control, and if a couple of the girls had stopped to take a shower together under a waterfall, but even as it stands, I think Doomed is worth a higher rating than it currently has.
6/10 from me.