Cool video but this strategy is flawed in quite a few ways. First of all it groups your whole team in 1 spot which is crap for control. I was in games during IB where the opposite team started a similar 4 man bubble train and usually what happened was either we just went around them to capture A/C and let them lose on B or we saved up supers and heavy ammo and quickly dispatched them since other than having a bubble they were typically out in the open once the bubbles were popped, which caused them to lose a majority of their orbs, win us a bunch of points, and stall their momentum in the match because they respawned with no bubbles, no heavy, and a B flag which was up for grabs to our team. I will admit it took a couple games to catch on to what was happening but once i figured out the weaknesses of that strategy it wasnt all that hard to circumvent.