I love it all in theory but in addition to the First Kill line sounding out of place, the stuff from the video game is also clearly voice actors Mat Lucas and James Arnold Taylor, not Hayden and Ewan. The Mat Lucas line sounds almost like it could pass as Hayden but the James Arnold Taylor bit sticks out to me because I’m so familiar with his Obi-Wan voice.
It is noticeable but honestly, if you’re watching the whole thing through, I don’t think it’ll stick out too much.
The thing that bugs me more is the obvious muting of the sound when Anakin jumps. I’m not too sure why you decided to cut out the grunt he makes when jumping backward, especially since they’re grunting and yelling all throughout the fight.