I struggle to find a valid reason to answer the title.Guard Motor always seems to be in the discussion of being OP/broken yet never Overwatch, despite being the most used OKW doctrine by far.
Overwatch is viable 1v1 to 4v4 and is beneficial throughout the match.Apparently the post UKF-launch salt of Axis players was strong enough to birth this commander into existence, at least that's my assumption considering I started playing in 2017.
That assumption seems to have a lot of ground to stand on though, considering how thoroughly this doctrine counters UKF.I'd say that it's justified to just outright /l a match if you see JLI whilst playing UKF, it's probably part of the reason why my playtime with UKF has dropped so much in the past couple of months, every OKW player given the chance instalocks Overwatch when they see the UKF faction icon.
will make your life living hell if you play UKF(not that they aren't strong against other allied factions too).JLI also mesh well with KT+JP4 "strategies", not as strong as just having Spearhead+Panzer commander sight but it still means a lot to be able to cloak your inf in light cover and use them as free extended vision.
will make short work of any UKF emplacements, or everything else too if you don't have a recon+direct strike combo.
can be used to get a cheap kill on a unsuspecting opponent if they haven't heard it's distinctive engine noise in the FoW or don't have wire cutters nearby to detect it.
is a nice bonus but seldom seen used(probably because it actually isn't necessary most of the time to win infantry engagements.
is utterly broken, no two ways about it.A single player should NOT be able to call in 4
AT planes that oftentimes can simply overwhelm a allied defense despite AA being present due to the sheer number of planes.This is now an even bigger issue after the M5 Quad has been nerfed in it's AA ability.
This doctrine seems like something you play when you want to turn your brain off but still do well.