How about a scout's vision gets shared with the squad (but no one else's is squad-shared)? This would also help snipers, not just scouts that are within 100-200 meters of the enemy.

I don't think limiting specific equipment to a particular suit class is a good idea.

For this to be useful for sniper scouts who wish to point out enemies for their team, the sniper rifle would need an additional effect of targeted enemies staying scanned for a short duration (3-5 secs?) since staying on a moving target is not easy in this game.

Are we talking actual field of vision beamed as a live feed into a squads' HUD? Because that would be cool, if a little tricky to process visually.

I like the idea of scouts wearing head cams that have a limited active scanner but can display much more information on the targets within their field of vision, and squad leaders can just open up a tab on the HUD that gives them access to the cam. It'd allow for a more "armchair general" approach to squad leadership.