Saw a player and saved a screenshot of his character at level 24 with 172k armour and 515k health!?. Is this legit??.
If you are suspicious that this player may have been cheating, please submit a Report to Ubisoft Support, and include as much information as you can including those screenshots. From there we'll take the appropriate actions.
As a side note, I appreciate that you didn't come on here hard and fast to try and make a public hackusation. Oh, and Welcome to the forums!