Now you lost me totally.
Well, Postal 1 was crap and Postal 2 had crap graphics and hardly enough explosions or humor, the film condensed the humor and explosions into 1.5 hours and had a great plot.
Doom has always just been shoot shoot shoot, so now we got action and a great plot too.
And Resident Evil? Honestly, why wouln'd the films be better? The older games are too slow-paced and puzzle'y, the films ditches that for fast-paced action. I bet that if the older games ran with fast paced action they'd be 1.5 hours too, but nope, they have to be so slow it takes more than 10 hours to finish one of the older games.
Films are better because they toss all the useless crap away and focus on the action and excitement, the directors knew what was needed to captivate the audience and that was to abandon everything that was bad about the games and highlight the good parts only.
Though with REvil they had to completely overhaul it since the games are such a mess.
So I think it could work really well with Fallout.
Cut down the talk talk talk parts, have more power armor, some explosions, perhaps a nuke or two or a dozen, some feral mutants those are always great, and of slow-motion scenes with rotating camera's showing the bullet trajectory.
Yeah, could definitely work.