Total War Rome 2 Online Battle #40: Arevaci vs. Armenia (Worst Faction Matchup?)
Obviously this is a 2v2 so the same rules don't quite apply as they would in a 1v1, but there's no question that the Iberian tribes match up particularly poorly vs. Armenia and Parthia. The reason is that the Iberians don't really have good counters to Cataphracts, and have very low armor, so are susceptible to being ripped apart by horse and foot archer skirmishing.
So combined cavalry/infantry tactics with spear support and good use of your Balearic slingers are your best chance to defeat horse/cataphract factions. But its hard :P
Other Videos By milkandcookiesTW
Other Statistics
Total War: Rome II Statistics For milkandcookiesTW
milkandcookiesTW currently has 703,417 views spread across 222 videos for Total War: Rome II. This game accounts for over 2 days of watchable video on his channel, roughly 7.56% of Total War: Rome II content that milkandcookiesTW has uploaded to YouTube.