I've read a lot of the comments on here and without being too offensive, you're weak bad. I've finished the game with and without the Weapons mod and couldn't be happier. As someone from another topic mentioned, You're practically impossible die as long as you use tactics. If you really need a god mode cheat, then play another game because it really takes out the whole point of it all. The rush, the skills and knowledge as well as natural reflex and tactics. You can't really die because there is no health bar/meter, and weapons are scattered all over the levels on the bodies of your enemies. I find it a lot more fun playing with the weapons mod too of course. SO seriously, if you keep dying a lot, practice!
I've finished it on PC and my brother has finished it on Xbox360 WITHOUT CHEATS on REALISTIC.
So if you really need a god mode cheat for this game.. this game isn't for you.
This place is called "cheathappens" where people go to get cheats to their favourite games, not to be whined at. If people wants to cheat in SP, so be it. Not everyone has a tactic/strategic sense and some people wants to cheat for their own reason. The point is, it's none of your/anyone else's business if people cheat or not, and/or why they cheat.
Sometimes you just want to enjoy a game without the "fear" of dying, or perhaps feel a bit immortal.
Stop the whining, respect all gamers, even if they cheat :]
(In SP ofcourse, MP cheating shouldn't be tolerated)