Lots of people complaining about X, Y, or Z - you can't fix the length of the game or other shortcomings, but you can really add a lot to the 'experience' with the CVARS.

Luckily I don't have the October 8th patch installed so I'm still able to tweak the cvars (you can increase enemy dmg, accuracy, health, your own health, regen rate, dmg, etc. etc. etc.) so for those looking to make the game "harder" go check the steam powered forums for some CVAR tweaks to make the AI really nasty, disable or limit your own 'health' and regeneration, and make the vehicle combat actually challenging.

Anyway, just curious if anyone knew (only curious because I'm sure you'll have to be 'updated' for any DLC.

I hope we'll be able to change some codes to have the Authority Batman vehicle replacing one of the current ones, and stuff like that.
Like in Crysis 1 for example where you could replace the US nanosuit with the NK one in SP (and in Crysis 2 replacing the nanosuit with the marine model), that changed the hands too, not only the model in third person.