Alright me and my group are starting up another campaign but this time we are being challenged to bring a fair amount of tactics to our game. Dm wants none of the usual I swing for this amount turn after turn. So far my group has gone with a fighter crossbowman focusing on a overwatch style feat chain, a Oradin, and a unchained rogue. The setting is low magic so we are restricted to dipping into a full caster class for a few levels or a 2/3 casting class. I just want some suggestions on a fun build, preferably melee, that has some versatility beyond swinging every round at hit points.