Viktor's 90th are not inactive, have a post on the end of their "locked" topic directing people to the "active" one where they can be contacted.
Precedent in this case has been that the "newer" regiment may keep the name IF They substantially differentiate both their Forum Thread and In-Game tags from that of the other.
E.g if Viktor were to have "90th Perthshire Regiment of foot" with tags 90th_Rank_Name
You could go with something along the lines of 90thFoot_Rank_Name for your tags and obviously just a significantly different name for your forum thread.
Obviously it is simpler for everyone involved if you have a unique regiment number all together as it prevents confusion between your regiments, the perception of your regiments by other parties etc. E.g if one regiments guys decided to quit an event and trolled, that event organiser could very easily take action against members of both regiments in the confusion.
I personally recommend you find a new regiment to portray, it ensures both you and your members are not "unfairly penalised" for something someone else does, it prevents confusion in the community at large and it prevents arguments.
