When you launch the game and buy the DLC, you have the option to either download all the campaigns together, or get individual ones if you want to save space on your device. The total installation for all the campaigns is a little over 7.5GB in addition to what the base game uses on your device. You can uninstall individual campaigns if you need to as well once you finish them to free up space.
Egypt starts with a safe position and potentially powerful units to reduce the Christian kingdoms to the north. Their infantry cannot stand toe-to-toe with the Franks so they need to be cunning & resourceful in their tactics.
A word on the diplomacy improvements in this game. Allies now stay allied to you and while they may/will break the alliance & attack you, they often help you as well. As the Teutonic Knights, I had the misfortune of the Holy Roman Empire annexing my western provinces while my forces were spread out. Polish forces helped me defend Konigsburg and then recaptured the provinces that the HRE had taken forming a buffer zone protecting me from the Germans. I was in trouble when Poland finally decided to attack me now but while the Poles had been guarding my western borders, I was busy expanding in the east, wiping out the Pagans and thus improving my overall position. This is the first time in a total war game (since STW) that an ally has actually helped me in any meaningful way.
Feral Interactive (the studio that has ported Total War: Medieval II to mobile) has also added a new campaign selector before the main menu to accommodate the new expansion. While it is listed under a single in-game purchase, each campaign is a separate download, which is handy if you're running out of space on your phone. The total download size of the expansion is 7.65GB, a hefty addition to the 4.3GB of the core game.
Overall, Total War: Medieval II - Kingdoms is a must-buy for fans of the original. Available for $6.99 via in-app purchase, it brings the total package to $22.98. It's a reasonable price, but we can only wholeheartedly recommend it for newcomers to the franchise if you're using an Android tablet. Feral has pulled out all the stops to make it a mobile-friendly experience, but Total War is best experienced on a large screen. If you already own the base game, this is one of the best purchases you can make now.
Europa Barbarorum II is a total conversion modification (mod). It covers roughly the same time period as the Imperial Campaign included with Rome: Total War, but made for use with Medieval 2 Total War: Kingdoms. 781b155fdc