You missed the point though: You said the military man (which is in fact, Yugeto's character) was concious:
" she saw the man startle and open his eyes"
And furthermore:
"The soldier had been mostly unharmed"
1) What happened to the soldier was consequence of Ciara, who is ALSO Yugeto's character. Hence, it is up to Yugeto to determine whether that Soldier is dead/alive/whatever. However, you forced him to be awake, and that gave your character the suspicion that Ciara didn't intend to hurt him.
2) By suspecting that Ciara didn't intend to hurt him, you're meta gaming. Because, yes, Ciara didn't intend to hurt him, but how well she deceived you is upto the damage SHE did and by the ability of the soldier's acting, which is ALSO determined by Yugeto.
In the end, all you that could lead Beatrice to come to such a conclusion is the ability to have inhuman, godlike insight on a situation that was nothing more than a host defending another host, though that host had a nasty attitude. Beatrice may be a survivalist, she may even be really smart. But there is no way that (based on Ciara's actions), Beatrice would have "figured out" some sort of teamwork between the soldier and Ciara. This is mostly because I'm forced to void your control of the soldier waking up, since he wasn't your character to control. It would be like, if at the end of his post, Yugeto said:
"As Ciara began walking towards Kell, she looked to Beatrice, who followed intently. She obviously had no idea what was going on, as she was completely trusting of Ciara. Judging by the ease of which she was willing to follow, Ciara determined that the girl must have been a 15 year old. Seeing that she was rather thin, she deduced that she was a gymnast whose last name was Magin."
See? It's a drastic example, but it involves both the problems that were evident in the post. 1) Godding (controlling someone else's character) 2) making unreasonable conclusions via metagaming.
Are gymnasts usually thin? Yes. But so are swimmers, anorexics, and cinnamon sticks. But I can't conclude that just because someone is thin, they are either of those. Similarly, your link between the soldier being "unharmed" and "concious" (Which I repeat, are godding) to "Ciara is scheming something" are unreasonable. Also consider the fact that, even if Yugeto (for some reason) agreed to have the soldier be "unharmed", he WAS undeniably launched away from the two. Ciara DID save her. And if Beatrice doesn't like Ciara's wording, fine, she can walk away, that's perfectly okay. It may make Beatrice seem a bit paranoid, but given the circumstances, she wouldn't be any weirder than the stranger so willing to offer help. Or would she? Wouldn't Ciara's offering of help be exactly what the Golden Mercenaries had done in Sovereign when they asked everyone to join them? But that's a whole different story.
Just remember two key points: 1) Can't control the soldier, 2) Unreasonable suspicion. Maybe a little suspicion is acceptable, but you can't suddenly be pondering Ciara's biggest secret based on some tiny piece of evidence.