I was Karim in this situation. What they say is true, we did unkowingly impersonate them. I hadn't looked through the groups on the server yet; and we didn't really have anything concrete on the group we wanted except for the name "Wolf Pack." Which we called ourselves during two robbing situations. Technically, it is different from their name, so it wasn't 'Technically' impersonating them. However I understand the confusion, and it was simply a mix-up.
Anyway, about the robbing. Jack and I spotted the two after trying to avoid a group of three who we thought was catching on to our charade that we were going to rob them, and decided to head to a nearby town. So we spotted them from afar, decided that one of us would play the "Wolf in sheep's clothing" (Again, sorry for the mix-up. Won't happen again). I would play friendly and slip amongst their ranks, learn their numbers, and find an opportunity to strike. We had a short conversation that ended with the two leaving to go to the military base. We followed them from afar, and I saw them change paths so I was planning on cutting them off. I saw them approaching the barn I was in, feigned ignorance, and played it off like I hadn't seen them coming, and they startled me. That's when I gave the signal to jack, which was removing the bandana from my face and putting it back on, and he sprung to action. I thought that perhaps if I fled around the side of the shed, they would surrender in hopes I would just save them. It worked, and I casually strolled back out from around the shed and gave a chuckle. We told one to get into the barn and handcuffed the other, and, in our adrenaline forgot to take their radios. We were only after a few things we didn't have, meds, a vest for me, and AK mags (Which we didn't know if they had or not, but might as well check them for.) As we were looting him he mentioned something like he belonged to a group and if we hurt them they'd kill us. So with this new information of a group, we were spooked and didn't want to linger too long picking through their things, afraid they would come and take hostile action against us for robbing their friends. We decided it'd be best just to get the hell out, and told the woman in the barn that if she came out we'd shoot her. Now, this was to prevent them from following us. Sure I could've said you can come out in 100 seconds, but if she found us she could fire at will and we wouldn't be able to due to the rules. So in order to prevent being hunted down we told them just to stay in the barn, and we ran as fast as we could trying to break line of sight because we had left them a rifle.
Now, I won't lie, in terms of RP, it wasn't the best. However, it certainly isn't worth a report. We're relatively new to the server, and that was literally our second time robbing someone. I'm used to RolePlaying through text, and voice chat is a new medium I'm trying to get used to. I apologise if you feel like your time was ruined and it wasn't fun because of us, but I'm trying my best here.