So I’m entirely against spotting, I’m not a fan of seeing where players are through walls, especially with the likes of the HBS that takes literally 0 skill to deploy but gives a massive benefit for use. I know SD won’t remove it entirely so, my controversial suggestion is… move the spotting to the mini-map.
Yes I know the mini-map is a bit poop, but you get the general idea from it and having spotted enemies show on there still gives the tactical info, but now requires the player to pay attention and take the eyes off the main screen to determine that information, basically risk/reward rather than all reward and no risk. Much like how CoD uses UAV spotting, stick the enemy as a dot on the mini-map and remove the wall hacks.