Dungeoneer
First Post
Historically speaking, they are no different.Fighters are often described as better than infantry, your rank-and-file soldiers.
This was true in 3e (which had the warrior NPC class) and 4e (which used different rules for NPCs giving PCs an edge). But in 1e and 2e, NPC soldiers were either fighters or level 0 commoners (and thus mechanically equal to the pig farmer).
How different should a first level fighter be from a common soldier?
In chainmail a 'fighting man' was a soldier in your army. The fighting man was ported over pretty much as-written to oD&D, albeit with hit points instead of hits.