there is a common phrasing for this " surprised" mechanism in C&C games, which Tricorne complicates by having Combat Cards that can be used " in lieu" of Command cards.
Something like this
• *The British are surprised, British start with 1 Command card. End of their first 2 turns draw an extra Command card. After this, British will hold 3 Command cards.
FWIW, I try and keep the Army (player side) terminology consistent, so there is a British side and a Continental side. " American" can cover both sides, since it includes Canadiens, Tories and I recollect the British raised up some Caribean regiments. Anyway, good to keep terms consistent, since it reduces the questions.
I accept the Hessan take a beating here, but as a game, I think it is better is both sides can " win" in some manner, even if it is a win by not being destroyed. Generally I dislike exit scenarios, but this might be one that makes sense.
