I'm with you on the feet, they are what's getting to me about the swc box, why have the weird stabilizer prongs on the back if they're just going to stick in there air, why is the sniper back foot resting on what looks like his toes. Sure I'm sure they really don't need to steady themselves to shoot but it all seems strange to me.
Spoiler Taken from: https://forum.corvusbelli.com/threads/wake-me-up-when-september-ends.24243/page-14#post-138988
Lore-wise, no specific thing, but it's a general REM-are-not-as-agile. Gameplay-wise, all REMs (and TAGs and Motorcycles) are unable to go Prone.
Fourth dakini profile is the combi +lgl, that option on army thats been there forever but nobody uses.
I hope these food stabilizator (just to seen in the rendared picture) is a part to cast the metal for the dakini-models... So its the flash what you cut off. If you want the long claw to be in front of the food: maybe its possible to turn it 180°.
The circled Y shaped parts are definitely a channel to let metal into the mould, we often see them on renders, the spiny bits match the art and other Dakinis though.
I love how quickly, out of all the things they could have resculpted for OSS, CB got to work on showing off the Dakinis. They know we want that HMG and its sweet core link + Assisted Fire bonuses.
I for one really enjoy Dakini Sniper model. I agree that it doesn't make a lot of sense considering that REMs can't go prone. But I've seen someone speculating that mayby they will add some new rule allowing them go prone, so this kneeling psoe made a lot more sense.
I don't see what the kneeling deal is... Leaving aside the fact that dakini are so humanoid they should be able to go prone... Kneeling only involves legs. I can go from standing to kneeling to standing using just by bending my legs... going prone either involves falling on my face, or using hands, arms, torso. There's just a lot more to going prone than there is to kneeling. Either way, i think the model looks neet :) And I can see it ending up in a defensive haris or when going second, using it as turn 1 reactive piece before re-forming the link for advancing.
Akward pose is akward, because of the real prongs (a "U" going back, the "Y" that counters it is from the mold and won't be there). The Avatar, Xeodrones and Overdrones, Unidrones and Ikadrones agree with you, since they are even more humanoid :p
Given that Bostria said Yadu are gonna be slottable into places, I think you are getting it. I think it's a garbage team, but what can you do. My preferred option would be Asura Hacker + Sophotect + Dakini / Rudras. It would be a weak team, but at least interesting.