Most "lone wolf" character types don't do well in tabletop RPGs. Dedicated snipers included. They may seem cool as a concept but in actual play if you aren't playing a team character you're going to spend a lot of time doing nothing. Roleplaying games are a group activity, after all.
My point earlier was that the example of the assassin pixie with sniper rifle isn't a good example, when talking about special snowflake characters, because we are given so little information. As I said, the brief text given may even suggest he used that sniper rifle deliberately so it would get into the news - it was a 'public' assassination, meant to sent a message. For all we know the character may normally use other methods to kill people - it didn't say he ONLY used that weapon. Simply not enough info.
There are plenty of special snowflake characters in SR canon. That's just not a good example of one.
-k