I've seen several posts in some threads of people requesting a Perfect Dark remake. Well, they did it already, a while ago, actually. Here's a vid:
It's just as fun as the original, everything is the exact same, just with a shiny new polish. They added matchmaking, but the original Combat sim still exists, challenges and custom games with sims and all.
Give it a try, it's fun and the nostalgia will kick you in the teeth with its awesomeness.