What benefit comes from finding flags in assassin's creed, besides achievement points...?

Question

i was just wondering if a certain amount of flags count towards your overall health

Answer 1

Nothing. You get a little closer to 100% which is also meaningless.

Answer 2

The only benefit is the achievements or if you are just obsessive about completely beating a game.  The bad part about the flags in assassin's creed is that there are a few that are glitched which will make it impossible to get some of those achievements.  My copy of the game had at least two glitched flags that didn't exist before I gave up on it and my brother said that his game had a couple glitched too.  It was really frustrating because I even found a great site that showed a detailed map of where every single flag was located.  What I would recommend if you want to try the flags anyway is to try the Masyaf flags (there are only like 25) and if any of those are missing, then I wouldn't worry about the rest.  Hope this helps!