BF6 Siege of Cairo map exploit

Just played this map today on the Conquest mod, then I suddenly noticed an ammo bag icon kept moving around near point D.

I thought it was a glitch until I used the recon kit and found out there was a whole squad on top of one of the buildings. I had used a drone to destroy their spawn beacon, but they have a Support, so it didn't stop them at all.

Can't believe EA hasn't fixed this after several patches.

Edit: For correction, it is one of the building near E.