A Max Payne 2 mod - more realistic and deadly.
[1.4 KB .zip] A tiny Rogue Spear: Urban Operations mod that lets you use terrorist and multiplayer equipment (such as C4) in single player games.
I have an unnamed, unreleased Deus Ex mod which made combat more deadly and difficult; nano-upgrades usable more often and more intergral to the gameplay. I never released it as I wasn't clear how to properly package DE mods; if you're interested, email me and if there is enough interest I'll do it.