Sniper: increase sniper model health to 82hp. Reduce sniper model sight to infantry levels and leave spotter sight as it's now.
Let the sniper cloak after leaving cover for a 1s-1.5s and tight up the formation.
Reduce flare cost (IIRC from 60 to 45) and/or make it also reveal cloaked units.
Pls no.
They are already pretty strong, just in a crappy tier building. Giving them 82 health like the one man squads will make them ridiculous. They already cannot be counter sniped effectively, their primary counter is indirect.
I wish there was an it needs help but not what you suggested option.
I think not having AT options from tier one is fine, you can forgo some early AT for much stronger AI. The problem is that penals just suck, I would change them to be like a stock elite infantry. Up the price, up the everything. Keep them AI only. By going for the stronger early game start you can be vulnerable to vehicles, which you can get around by calling in guards, following up with t2 for AT guns, or quick teching to t3. This would open up a bunch of the commanders that don't have call in infantry for better use.
It's fine to have a tier like this have no AT options if it was actually useful to go for in 1v1s.