Bros please give me tips on beating 14F, I just can't fucking do it. The blocker on the southern part of the map is so goddamn tanky too, it doesn't go down even after focus firing it with a team of mostly supports. How do I do this shit?

Would any specific unit make this easier? Picrel is what I've been trying to use with limited success. I'm also a brainlet so maybe I'm just not going about this right. I know someone in the thread earlier said something about blocking Mu but I don't really know what that means.