Yes, that's basically it, but I'd like to do it this way. First, I'd like to have it on screen all the time, not just when I press TAB, and for this number to increase as I play matches. Let's say, I started in WaW and killed 150 zombies. Then I go to BO1 and kill 30. I'd like them to add up. Every time I play matches, I can activate the mod in each game.
Match 1: counter 0
Match 2: (match1) + current match
Match X: (all past match count) + current match
I'd like it to be all unified in a single file (I assume a text file with the number and that's it) a counter that I would save locally and be able to collect that data every time I start a match.
It's like a life stats of me playing zombies.
I honestly don't think this will be easy, but I'm looking at options.
It also happens that, let's say you're doing an Easter egg and you die, you want to start over quickly and not stop the session, see how many zombies you killed, write it down manually somewhere, and start over. Eventually, I might forget. That's why what I'm looking for at least is the following: A counter that keeps counting every time I start a game and doesn't reset with each match.
I think unifying a single file containing all the stats for all the games will be very impossible due to the difference in years between some games, and it would be difficult for all games to use the same mod. Perhaps it could be done with a single file, with a mod for each game that references that simple text file containing the number of kills and headshots. Otherwise, I could add up each statistic for each game outside of a recording or game session.
But adding up the stats for each match in each session would be very tedious.