You can't damage infantry standing on top of NF's first flag when firing at the metal grates they are standing on, but if you try doing the same thing in front of the fourth flag, where the buildable bridges are, damage goes right through (and is pretty good at clearing out the enemy, hint hint). Can this be made consistent, one way or another?
I still shoot the undersides of the platforms next to the 4th flag NF spawn. It's pretty easy way to get kills when the splash damage of HE goes through the concrete platform