I have added a really cool feature to Russian Civilization.
You can build BRIDGES on the ground and water surfaces where you can place your siege weapons and infantry units on the bridges.
You can build bridges to connect them to across from one island to another island to invade the enemy island. All of these bridges can be destroyed, and the naval units can pass through bridges too.
All of these features are in the mod now. I might add spawn units from these bridge too.
I will add this building bridge feature to other civilizations later on too. I had done some intense testing really and at the end I achieved these features. I will try to add a feature to build walls / gates / bastion on the water surface too.
@StereoQuasar163 , @Seicing , @Ashenone3DM , @ahioz9426 , @GutsYxGameR8485 , @xtyd3941
Do you want to make that ocean bridge to have naval trade outpost visual or not? please let me know.
@everyone, If it is possible would you play against AI English Civilization and AI Russian Civilization to check about whether any crashes happens or not please (for the new features I have applied on English and Russian Civilization)? thank you very much.
All of these features are available in the Conquest Mod already, just don’t forget to update the mod.
I couldn’t find a way to rotate that bridge to build any direction only. If anyone knows how to do such a feature please write a comment below.
I have pushed the limits of Content Editor 
I hope that you will enjoy more to play the Civilization Conquest Mod and AOE4^^.
Note:
Russians can build extra buildings too, like English Civilizations about military camps, watch tower and tents.