1. You usually get a sidegrade or aupgrade, meaning it can be anything trhe game deems just as good as what youve currently got equiped, in some FP's IO still get ir300 gear even tho im 306.
2. You only need 306 gear for ranked, dont listen if people are telling you otherwise in unranked.
You dont need 306 todo ops, although it makes tihngs easier, every ops except dxun caps mastery, powert and endurance at level 70 values, sooo their designed todo with level 70 gear