Arabia's UA could also be considered a naval ability for the mid-late game (2x oil). Russia's UA could also be considered a naval ability for the medieval game (2x iron). With the current amazingly poorly thought out one-way ranged bombardment it looks like the +2 movement might be quite strong though. With the previews we've seen, it is a system of "he who strikes first strikes last" where the only real important factor is bombarding the enemy before he bombards you. That kind of system promotes speed over everything (like the original Galactic Civilizations II before they realized that a "first strike wins" system was beyond stupid and changed it).