LVT anti air setup is absolutely useless

I have that upgrade path on the LVT with the 50cal anti air guns. They are so useless. They seem to have tiny range, do minimal damage. I have never been bothered to respec it. I think i have never shot down a plane with it. I am awesome with flieger and the anti air emplacements. But man that tank is useless at taking down planes. The anti air is better for taking out infantry.

Overall pretty useless which is annoying because the LVT is on all those pacific maps with planes galore.