Fallout 3 Trainer List Trainer, Saves, Editor :
Editor - Mercenary hire
It's a mod file that will add a contract in megatan & rivet city.
If you talk to her you can buy 4 type of mercenary with different powers & guns & prises.
It means you can buy mercenary that those are work like companions very well but they don't heal after battle.
but it's Great & I love it.
copy the file to Data folder in game folder.
Trainer - Fallout 3 trainer