So while infantry wise it might turn into a sniper war, it would be the tanks job through teamwork to clear some of the snipers out.

If they did less damage against light as I said they should, the light vehicles have more firepower and are naturally better at flushing them out then the heavy armored vehicles which aren't bad themselves. Imagine buggys/humvees that are a bit more immune to snipers, 500 for snipers 300-350 for the buggys/humvees, it would give them more of a use again.

Then you have the heavy armor with my slight damage increase recommendation still easily surviving a large amount of sniper shots clearing them out, tanks and remember apcs, while never used to kill infantry when they ARE used they kill them quite quickly and painlessly.