Liam high in a tree as is his specialty, lining up a shot on a bounty. This particular one is meant to be from sometime in the late 1860's early 1870's, Liam is early in his career out West and hasn't gathered enough money to use anything but surplus and scavenged equipment. He has tracked an outlaw that faked his way into a military camp, and watches and waits, preparing to take a shot when an opportune moment presents itself.

This shows off one of the reasons that an assassin/sharpshooter opossum character was so cool to me. The way opossums use their tails to steady them in trees while climbing just seems like it would lend itself really well to such a role.