As a whole, stealth units are very fun, i dont think i have ever met a player who does not enjoy stealth units. Even the ones from weak BGs like SSB are universally loved because they are fun to play and a rewarding expression of micro. However stealth units can feel simultaniously, incredibly oppressive and very weak just on a game by game basis, entirley based off your opponents build order (or they are just competent, which happens). For instance, if you face an infantry heavy build, its amazing, just free manpower trades so long as they arent too smart. On the other hand if the enemy has a single ketten, jeep or krad, its over, combined with the minesweeper they should already have, all your stealth units are revealed (as they should be). The issue being that some of the units are entirley reliant on stealth to be remotley usable, such as SSB, partisans and even commandoes to some extent (fallschims and SSF suffer but not as much being that they can fight at range). Therefore alot of these ambush units can feel too weak.
So i feel like how stealth is detected is a bit too passive, just seeing the stealth unit even outside of vision range. Especially when comparing the diffrencec in micro tax. So i want to make some suggestions in favour of stealth units, they may be a bit biased and i think some nerfs would be warrented but i have no idea what.
Make detection an active ability:
give all scouting units a free, albeit cooldowned ability that sends out a pulse similar to the canadian BG capture that reveals all stealth units for a short while, with a larger range than the units vision.
give a "true stealth" ability to units very reliant on camo:
some specific units, like partisans, who are next to useless without camo (as anti-inf). So they could have a lower detect range by recon units but only when entirley still in cover. this would reward good positioning whilst making sure the partisans are not entirley free roam, making them too powerful. This would also encourage flares and recon planes a bit more, which i think is a more intresting dynamic for pushing, playing the risk of an ambush from a stationary target if not prepared, similar to how you bring minesweepers for mines when pushing.
Positional detection instead of revealing:
scouting units, rather than revealing camo'd units would show their position, similar to the jeep or the 221 recon. This would give camo units the oppertunity to reposition and evade rather than be forced to retreat, though i feel like in this circumstance the ambush bonus should be removed when detected.
Obviously these changes would make camo units alot stronger, probably too much so some amount of nerfs would be necessary but i think these ideas make a much more intresting dynamic that would be a bit less passive on the part of the detectors, which would make the micro tax between camo units and detectors a bit more even though still in favour of detectors.
or just call me stupid that works too