Lol confused again, what's your point here?
Another thing is when they came upon the 3 dead Troopers, Commander Fox was hot on Asoka's heels and would have seen the glow from her Lightsabers and heard their distinctive sound when being used in combat.
Remember though, Commander Fox was not one of ones knocked out, he didn't see anything.
EDIT: Something I forgot to mention that I found strange. Captain Rex remarks when he saw the dead troopers that Ashoka would never do something like this. Yet when Anakin leaves he tells the other clones that she has killed three troopers and should be considered dangerous... Sidious' influence?