I disagree it's a measure of class efficiency but whatevs.. SPM then. Your SPM is sucky because ... you aren't doing anything. You are literally sitting around doing nothing and being quite patient about it. In exchange you gain positioning which should (if you do it right) allow you a guaranteed win during your next 1v1 encounter. You have a high KDR as a result. But unlike with say a HA, KDR doesn't equate into something useful like KPM (the main stat for a heavy...not SPM). I'm afraid I'm not seeing your case about how the killcam is going to affect you. If you stayed in the exact same place after a kill it would be stupid whether there is a killcam or not. How does the killcam change anything?