Its a start in the right direction atleast. And the marking dagger wouldnt last that long maybe 3 seconds max, either that or you dont even have to add the esp part. Just a mark for extra damage. Might encourage more people to use sniper also. If im sniping in a garden tdm and i see a marked enemy im most likely aiming for that marked enemy. Could make sick effects with a marked target and when the mark procs could do like a cool bursting effect that damages the enemy more.