[X]Magic. Specifically, blessing things. Since you apparently managed to Bless a Car. Somehow.
Probably won't get accepted, but after the shenanigans with the +2 skill, I figured it's worth a shot. Besides, Seras already has 40 in heavy weapons for whatever reason. Assuming that applies to things like HMGs and Grenade Launchers, she should do fine for shooting things.. Being able to run away and such might be nice, as would Supernatural recognition, but being able to bless Guns/Cars/Rocks/Small Furry Animals sounds like it'd be a worthwhile skill.
Also, Yay, Eddie's alive. And not a zombie.