yeah noticed flag, seems like an easy map, id try to keep it that way, or progressively gets harder, or whatever you wanna do...
with the flag deal, you gonna have a place at the end of the level or something where you have to take the flag...
if thats the case, put the flag at the end with a cap, so when your at the end you can cap the flag, and then people would know you've completed it, i know you already know this prolly, but placing it in the 3rd room and continueing on, just makes it odd....