Mid range no scoping large target areas for massive damage while moving at top speed sounds like exactly what it was designed for. Basically setting up two team each tasked with focusing on one Walker. If you end up in a cross fire have one team move north an the other south. Depending on if there are adds keep at least one person on crowd control.Hunter blade dancing or Sunbro spamming grenades for days. Two Defender Titans alternating Bubble with WoL to give the team a chance to rotate out for recovery and buff while working on the rockets. Third man(if he is capable of using it effectively the one with NLB) focuses on knocking out weapons and occasionally helping with CC. After weapons are down getting at the legs will be hard. Walker grenade spam will be devastating in these close quarters. It would probably be best for both north and south teams to focus on a single Walker after the rockets. This will open up both sides and give a chance to get at the middle and rear legs if it turns. Honestly I love fighting Walkers, so if this fight is a thing I am going to be so excited... ...unfortunately the rest of my clan doesn't feel the way I do, so I expect a lot of rage.