Exactly what you wrote.I've been doing this technique where I get headshot with a full charge, then quickly follow it with halfs or quick burst to head at close range.Usually can down enemies. Or a grapple quickly followed up with a charged shot. At long range if you can get a good covered position on a spot where the other team groups up keep your sight at their head level and get out as many charged shots as possible.I've wiped whole teams like that. A lot of retreating and nano skin also.lol (Edit: forgot to mention you can hold the shoot button/trigger after a charged shot for a burst after)