Department of Yui reporting on the hot (literally) new event coming at you real soon. That's right, I'm my own department.
I've been tasked to report the eUSA's official Terrain Priority List.
If I were you, I wouldn't blow your Strength load all in one spot. Try to distribute your points in a top heavy way, i.e 20% in Suburbs, 10% in Wasteland, 9% in Mud, etc.
You don't want to find yourself being useless in all but 2-4 terrains.
Good luck and get those medals that, lets face it, will probably accompany this event and further bloat your eRepublik profile.