1. Delete or move all previous versions of this mod. I recommend doing the same with any old map versions as well to avoid confusion.

2. Download zip file package. It should contain 2 civ5mod files. Unpack both of them them into your MODS folder. Location:
C:UsersOwnerDocumentsMy GamesSid Meier's Civilization 5MODS

3. Clear your Civ5 cache if you think it is necessary (this was a big problem before, but it may not matter anymore), as this can sometimes lead to conflicts from residual mod data you've used in the past. It is located here: C:UsersOwnerDocumentsMy GamesSid Meier's Civilization 5cache. Delete all the database files. There should be about 6 of them.

4. Start Civ 5 and install the mods in game like you would normally do for a downloaded mod. ie. go to browse mods and click on install on lower right hand corner. It should take a fair amount of time to finish. If it doesn't complete then see the troubleshooting section below.

5. This is a good time to enable the mods now, so click on the enable icons for the 2 mod parts. It is recommended that you disable all mods except for the 2 WW2 (ver.15/12) mods. This isn't exactly necessary, as I play with InfoAddict enabled myself. Avoid mods that change any gameplay rules though.

6. Close Civ 5 and go back into your MODS folder.

7. Open the mod folder "WWII Full Earth Campaign Part 2 of 2 (v 12)". Select the folder "Common" and copy it. Open your civ5 common folder located here:
C:Program Files (x86)SteamSteamAppscommonsid meier's civilization vresourceCommon

8. Paste (This contains all the required animation instructions for the new units). If this is not done, then you will get the spearman problem during animations for any of the new units.


STARTING A GAME
1. Start Civ5, and select "Mods".

2. Open the mods browser and verify part 1/2 are enabled.

3. Navigate back to the mods main menu and select "Single Player".

4. Select "Custom Game". If you have a problem launching the game through the custom menu, then select setup game instead. From there you would pick the WWII map, select "load scenario", and launch the game.

5. Select "World War II Full Earth Campaign", Choose your WWII civ, and finally start the game.(if you get "Assertion failed!..." then see troubleshooting below)

NOTE: This mod has a very high number of units (in part due to 2 units/tile) for the AI to manage. So, expect long waits in between turns. Be patient. At times it may appear the game is stuck, but it is merely the ai working. If you have a super computer then maybe it will still play quick, but otherwise you may need something else to do while the AI takes its turn.