Dirt Nasty
Legend
Why not try something like having players submit a screenshot of their time played on that character? If player x has 25 days played and only 2 days played at their current level, then there is a high chance that they got most of their kills at a different level, because getting flap captures will take a lot of time. If you think about it, you can only get a maximum of 3 captures per game and it won't happen too often where you are the one to get all 3 captures. You'll also have to account for queue times. A person with 25 days played and 24 days played at the current level, on the other hand, most likely got their flag captures at the level they are twinking at. I suppose the only flaw to this is with players who were either free to play or pay to play level 20s that moved up to level 24 twinks, but I'm sure that the active people in the bracket will be able to back the person up when they say this.
Hope this makes sense.
Hope this makes sense.