Fps and rpg games what would be suitable for my computer?

I Got my own laptop and to be honest, its the Compaq nx6120 HP and I need some fps games and I'm running low on disk space... So are there some good FPS or RPG games that I can play here? I need games that take like 1-2 gigabytes of disk space... Ty for the suggestions...Fps and rpg games what would be suitable for my computer?
Battlefield 1942: complete collections

4 games in 1 pack for really cheap at best buy.

pretty much runs on any computer





it has single player and online modes

really fun:)
Combat Arms is a free FPS that is really fun, its like Call of Duty multiplayer, exept no iron sights and slower leveling.



And it's fun.



It takes up 2.63 gigs of space though...Fps and rpg games what would be suitable for my computer?
..... more information would be helpful such as system specs, but you are going to have to go with older games as 5gb for a game is common -- upwards to 20-25gb (WoW)Fps and rpg games what would be suitable for my computer?
For an online multiplayer FPS, try Urban Terror. Its pretty old but still really fun to play and has a lot of people still playing it. And its free to download.

I'm not sure how big it is though, I'm not on my computer that has it.