level 1 : I take Shrug It Off because it lets you pursue a little more easily. Press the Advantage is also nice, but I prefer [[shrug it off]
level 4: The more attacks the better, so I take Master Assassin. I also like in the rythm, but that doesn't help you while using Commandeer Odin
level 7: Imposing Presence. If the enemies have no real CC, then Quarterback
level 10: Commandeer Odin
level 13: Neosteel Coating. Again, the others don't help in Odin
level 16: Either Armor Piercing Rounds or Lead Rain if your team doesn't have any CC
level 20: +50% Odin duration? Definitely take Big Red Button