Music

I don't think its aged well.

This game looked incredible for the time and introduced a rail gun sniper rifle you could one shot kill people with.

This map let you camp out and be a sniper but it was possible to overwhelm the sniper so the game stayed fluid and teams had to support their sniper.

Quake, HL2 Deathmatch, Counterstrike had similar weapons but quickly filled with people who could launch themselves 100ft in the air and headshot someone half a map away through a window which is why single shot weapons faded out of FPS games.

If you try multiplayer on some of these games, the skill level of opponents is even higher, they know every trick and execute them flawlessly. This destroys the reason the map was so good.

Playing the sniper in 4 player borderlands story is probably the closest you would get to the original experience.