Let me start by saying I have no problem with the damage tracer missile and grav round do. However, I am tired of getting into warzones and having half of the enemy team standing in one place spamming one button. I am a vanguard, and fight bounty hunters on a regular basis. I must use a dozen different abilites, while the only cast bar I ever see on their portrait is tracer missile. At the end of the warzone, they have done more damage on average, from standing in one place channeling one ability.
Would it be so hard to add a short cooldown, say 10-15 seconds, so that these players actually have to learn to do more than press one button?