It was final table with 9 players left. Online MTT, no reads. I have about an average stack. Blinds 6K/12K/600. Hijack who slightly covers raises to 28K, I shove for 330K, and he calls with QQ. Should I have flatted? Should I shove anything? Should I 3bet/call QQ+ only for value? Would the shove be good if it weren't the final table?