A game published in Command magazine Issue #47, along with Attila: Scourge O'God, Holiday 1997
From the game :
"Perfidious Albion is a two-player "what if" simulation of a hypothetical Napoleonic plan to invade England in the alternative history described in the article of the same name printed in issue no. 47 of Command magazine".
1 hex : 5 miles
1 GT : 1 week
Units : divisions of about 10,000 men and corps of about 30,000 to 40,000