Where is the contradiction? They were light infantry sent to capture a well defended fortress, aka sacrificial lambs being slaughtered to cater to the unreasonable demand to capture Bakhmut. The survivors — I don't know where you got the idea of "all" from — are going to go back. Whether they will wreck havoc remains to be seen.
What is the intent of your post, by the way? Genuine confusion or trolling?
Edit: Ok – two murders and one (habitually) disorderly conduct already reported.