THE FIRST DAY
3….travel expence vouchers,                expense
13….having fun at his expence.        expense

29…..o our fate.                        on our
51…companion was sent to his hit        hut

CAMOUFLAGE
14.. the Army's land                        I would agree with the A, after all it's the Army, not any old army.

I think I must have been carefully correcting your US spellings last night while you were posting your explanation.
I'm enjoying the stories.
Mo