Okay, got it on a Rocket Launcher and am not a fan. This should not be an optional perk for a rocket launcher or a sniper rifle. Have it on a shotgun and it's promising but does not last long enough. I'd say up it to 5 or 6 seconds from 3. Otherwise, it's marginal, at best.
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Agreed. By the time I see the battle runner timer after a kill it's already expired.