Yes I do agree that was a bit scummy, but there was still not much they could have done to save themselves, even if I didn't aim for the leg they would have been still goners, so aiming at the leg couldn't have changed the outcome anyways.
This was my first time playing as a Unathi In general so I had no Idea how fast it could get with adrenaline, I was using my usual ling tactics on another race that I had no idea how it worked so you could say it was unintentional "powergaming" and I probably did not realize it during the heat of the pursuit.
Not sure how using adrenaline sacs the way it was intended to be used (increase in mobility to escape or fight) is abusing mechanics, if you find that it's a bit too "powerful" for your taste, you should complain to a developer but not to a player, afterall it is the developer's job because I won't care about how overpowered an ability is mid-chase.
I wanted to roleplay as an unknown cosmic horror invader with the sole purpose of survival, I simply just wanted to fly out because I thought that would generate more reactions about how the crew just let an unknown cosmic horror escape and not be "woohoo we won!" and be back to normal again so not sure where you got the "security had been destroyed" thing from, and from my perspective, I roleplayed and escalated most of the round pretty well, and only went loud when the remaining security officers started plotting against me and disobeying my orders.
It saddens me to hear that not everyone enjoyed the round and I am sorry if you did not enjoy the round, but I tried my best at escalating and doing roleplay, so even if I messed up I did not really mean it.