I am making good progress on the Deathwatch Scouts/Snipers. All the bases are finished and the finished bodies are mounted. I just have to finish guns, pick out heads and they are finished.
As it stands, I have picked out the following Chapters for the Scouts reading from left to right and skipping Rufus. Blood Angels, Space Wolves, Ultramarines, Space Wolves and Salamanders. The repeat of the Wolves has to do with fluff and bits. In the fluff, Space Wolves do not use the Scouts as in-field training but rather as exile-in-combat for their problem kids. As a result, they have WS 4 and BS 4 Scouts when most updated (all at the time of writing this) have WS 3 and BS 3 Scouts. Ignoring the behavioral problems of having a Space Wolf (let alone a problem child Space Wolf) on a Kill Team, this would make them prime recruiting for Deathwatch. I included a plethora of Wolves in the sniper section of Deathwatch, because I have many left of heads for SW Scouts.
So, counting Rufus, I'll have 3 Space Wolf Scout/Snipers and (so far) 6 in the army. Over-represented? Maybe, but Wolves have always been awesome and over-represented given that there are 12,000 of them max in the 40k Universe.