I've been having boatloads of fun with the infantry, and really I'm not bothered by the Hermes or ATGMs. I must grant that I haven't seen them much since they allegedly started shooting down 120mm and 76mm cannon rounds. Shooting ATGMs makes sense, and mortars I can see. There is a laser based anti-mortar/anti-rocket system in development now. The current problem is powerful enough lasers.
ATGMs aren't that easy to use: you have to keep the target in your crosshairs, which can be difficult if they're shooting at you. And it only top attacks if you have a good lock. That good lock can take time you sometimes don't have. (And it's a drag watching your missile plunk against the side of a Thor. But the downward blast slagging the turret is very satisfying.)
Someone was asking why the infantry don't show up on the tacmap? They don't give off enough energy for most sensors to find them. Try using your jump jets in an enemy base full of ground turrets. I like wandering into the enemy base picking off the turrets as I go. 'Bout all I have to ask for would be a rangefinder on the infantry zoom and maybe an ATGM team. Between the five guys you have four missiles and the launcher. Specialist dies and now you can use your reloads. Or if the riflemen are killed you lose reloads.
My three bits,