Basically back then the Sunder troop vehicle had repair and ammo rearm aurora around it which repaired and rearmed all vehicles within 10 metres.
We tested this out and realise the effect stacked so we brought 25+ Sunders to the VS warp but lacked fire-power. We held it for about 2 about till they figure out how to counter by bringing 15+ Dalton liberators and focused fire on one sunder thus insta popping it. So we change the set-up to 15+ Sunders and a lot of tanks to the NC warp. We held the ground outside there warpgate for about 2 hours. Till the server came down to be rebooted.
This Video was Filmed in Early Planetside 2 beta where we could not release it to the general public because of the NDA.