I never watched The Losers but I read both volumes of the TPB and I can recommend part two as well. The story does get a bit fantastic in places compared to part one, but it holds together very well and I kept being surprised at every corner. (Also, I absolutely love Jock's art style. He still draws most of Vol.2.)

Btw, I finished Thaw today and really, really enjoyed it! I love a gripping mission fic like that! The level of detail infused in the story really makes it come to life. And I really like Clint's POV.