Holan95, welcome at CFC
and thank you very much for your interest in CCM.
Another thank you very much to Arexander and tjs282 for explaining the settings of the supply shipments.
The point, that is missing is, that in the
Game Preferences of C3C the
Advanced Unit Action Buttons must be activated.
View attachment 690679
This is no big problem as the game preferences can be changed during the game.
This is the civilopedia entry of CCM 3 for the supply shipments. It contains even an own chapter about the escort convoy button and an illustration of that button in the civilopedia entry:
View attachment 690680
So Holan95, it should be no problem to fix this, if you have the supply shipment option enabled at the start of the game. Simply go to the C3C game preferences and enable the advanced buttons. Now the escort convoy button (and some other options as per example naming your units) should appear in the game.
The supply shipment that is eventually appearing too early in the game, could be triggered by a start with a flag unit, that is excluded in the normal CCM settings (but can be enabled by a player accidentally). This should not be a big problem (if no other settings were changed, too) as it means that you only have an additional supply shipment more in the game by this.
The "mine graphics" in CCM are no mines but worker camps, as that option in CCM can also be performed in forest tiles.If you dont like those CCM graphics, simply search the TerrainBuildings file in the Art/Terrain folder and set an additional letter behind it (per example TerrainBuildings-a or something like it) and that file will be replaced by the original Civ 3 TerrainBuildings file. If you later think that the CCM graphics of that file were still the better ones, you could simply delete the suffix (here -a in the example) and the CCM graphics file is in the game again.