I have decided that the most appropriate form of campaign for me at the moment is the Narrative Campaign. This will mean the only 'campaign' element is the conservation and development of forces, as successful troops gain status while defeated troops may lose status. The actual scenarios will be taken from old wargames magazines and the Scenarios for All Ages book by Grant and Asquith.
The year is 1812 and the Anglo-Portuguese Army commanded by Lord Wellington has begun its advance into Spain. His immediate objective is to capture the two Western fortresses of Spain, Ciudad Rodrigo and Badajoz, then defeat the Imperial forces sent to oppose him, then liberate the Spanish capital Madrid.