Are you all high? That was pretty much standard inf vs air with couple of mistakes, Hawky mismcroed big time, the air guy just did obvious moves as air vs inf, building pathfinders - obvious choice vs inf. If he had build the strat center earlier, instead of constantly trying to harass on a huge map, he would have won easily.
Killing infantry - with supply trucks? Standard stuff, what else could he do with 15k money and no production buildings.
Building mines paid of this time? Hawky built the mines after he lost his production buildings, he had ton of money and mines were pretty much everything what he could build.
afg vs inf super close ending gg