Lockdown as you know it, is all Dash-in-and-kill-every-enemy-in-sight with almost no use of the surroundings at all,
take this for example, Reactor has electricity traps at the top right corner, near the topmost capture point.
I see it there, most of the time, being a hindrance to Strikers trying to Capture the point, however, most people do not use the trap as a way of shocking an opposing player without a shock weapon. A heavy sword's 2nd swing , a supernova bullet, or even the blast of a Bomb of a nitronome series can send an enemy right into the trap , immobilizing him and either buying you a chance to escape of to give you some breathing space to deal with his team mate.

So, all I'm really trying to say is, that you guys at OOO should make more maps with environmental traps or Shankles in them, that would really give lockdown some sort of a tactical side to it.