Far Cry 2 is annoying. I do sympathize.
I wanted to carry around a greater variety of weapons with me. "Why do I keep having to go back to the Weapon Shop?" or "Why buy extra crates to deposit Weapons in my safe houses?", why couldn't the game keep track of the weapons that were in the back of my jeep - or my boat, or all vehicles for that matter?
I suppose the problem with Quick-Save is that you can make a game too easy by providing unlimited slots. Oblivion has multiple slot saves, but even though you get a time and a location specific picture to remind you when and where you were if you choose to resume playing from that point I don't find this helps me. Maybe your path through the game world could be drawn on the game's map and you could "rewind" to an earlier point in your journey which, as it would be a point on the map you would know where it was for sure. The only downside of this is that it would prevent you from abusing the Quick-Save slots to explore multiple approaches to a problem and then keep whichever one had worked out for the best.
For a long time I have felt that games are failing to address the "convenience issue". With any other entertainment medium: novel, music, TV, and DVD, you can stop (and turn off any equipment it utilizes), then pick up where you left off with the aid of: bookmarks, track number/scan, video/TiVo/Sky+ recording, and chapter indexes. Yet, a game like Far Cry 2 will expect you to be there for the whole mission. Sure, you can pause the game to make some tea, but you are expected to come back soon. Unless you are happy to leave your console whirring away all night on pause in the hopes that you will be free to continue the following evening you will lose your progress if you turn the console off.
Why is this? We are living in the 21st Century. Why can't you pause and exit any 360 game through the Guide button menu and have it save the current image of the running game that is in RAM to a dedicated portion of the hard disc. Laptops hibernate. My Mac Mini wakes from Sleep with everything on the Desktop where I left it. I don't even see how having one save slot used for pause/sleep/shutdown would make a game easier as you wouldn't be using it as a checkpoint to revert to whenever you died. Of course, it would only work for the game you deliberately left in the disk drive, so you would need to find a bona fide save point like a Safehouse to be able to remove the disc from the drive and play something else, but it is quite common for people to play one game all the way through, so I am perplexed that this isn't supported.