You are right about that. Omicron Gamma is not on our area of operations. But the map, showing our ZoI, is outdated and needs some refreshment.
Now to explain the situation as to why we were in Omicron Gamma. We found it necessary to do a sweep of all important Omicron systems to check the strength of the local groups in them. The Corsairs were one of them. We went to Omicron Gamma to check on their fleet strength and current status. If you were there you would know that I roleplayed a recon mission into Gamma. I RPed in system chat, which showed what we were trying to do. We tried to scan facilities and Omicron Gamma in general, in order to get useful and important information. But our mission has been stopped by a few Corsairs that managed to spot us. So we defended ourselves and ended up being on the run.
That was pretty much all. We are an intelligence agency and always have to be up to date with 'certain' things. Doing these kind of recon missions is our job. Go in. Get information. Go out unnoticed. Unfortunately it didn't work for us. So we fought our way out.