Interesting observations.
You got part of the function of the Glawrra and their Minders as an operational element. Not exactly a recon in force, more like a tide to sweep the weak leaving the "strong" to be isolated and handled, by specialist.
This is part of my concept of "what" the Battalion really is. As the arcs progress more will be revealed concerning the Battalion. The posted lore did not go into much detail on the hows/whys of the Battalion, so I came up with something unique that does not conflict with existing canon.
Twilight's Son has a lot more to do. Afterall per the lore, he betrayed his race...there is more to that story as well as how/why Silos recruited him. This will unfold in future installments. If I had Dev Powers there would be more interesting things I would like to be able to do, but with the MA as is, I can tell that story and I think players will like the ramifications.
Lady Grey is also key to going forward in the overall narrative, but she is not necessarily acting as a free agent. Other factions are at work and she being the leader of Vanguard has the responsibility of dealing with Alien Threats. The Rikti are still a problem and the arrival of the Battalion are a bigger one.
Manticore's Mansion was a hard one to get right with the MA limitations. The npc's and collections spawn randomly and I think most players understand that. Manticore himself also plays a big part in the narrative. I posed him like that to show his frustrations (there is no existing pose that I felt communicated the emotion as well). Per the Lore - Manticore and Countess Crey are destined to become romantic partners and that is part of the narrative to unfold - unless something has already sparked between them...I won't spoil it further.
As for your comments on the composition / power choices - I did consider adding ranges/vertical movement - but that did not fit into my concept of the Battalion as a whole as an operational entity. As the arcs progress additional forces of the Battalion will be introduced.