From the plugin's Readme:
Zeppo9's AIGC's
7/31/2000
These are custom Grand Campaigns for play against the AI. The A or G at the end of the GC name indicates which side should be played by the human.
Move or extract these files into Games/Battles of CC4. Answer "Yes" to the file overwrite confirmation prompt if it appears.
Description
GC A:
Play as Americans. Americans have weak defense at the front and Airborne and Patton's BG's reinforce later.
GC A1:
Play as Americans. Americans have strong defense at the front. Airborne and Patton's BG's are not in the campaign. Americans must hold the line.
GC A2:
Play as Americans. Atomic's GC with a few changes. German infantry BG's changed to provide supply/counterattack support,
and American front supply depots removed.
GC G:
Play as Germans with "weak Patton" mod.
GC G1:
Play as Germans with "strong Patton" mod. Offers different set of maps to begin campaign on.
GC G2:
Play as Germans with "strong Patton" mod. Atomic's GC with some changes for single player.
Zeppo9 [zeppo9@my-deja.com]