Your list as written on the website includes an understrength
GKSS...which can only be included in an Auxiliary Detachment. So you need to fix that.
Dreads are T7, so the Heldrake wounds on 5s.
Your yellow Dread was the basic guy, which in your list has a
SB, but you used a heavy flamer for overwatch. That's just plain cheating!
GK Smite is 12" range instead of the usual 18", so the one
GKSS that got the Smite looked to actually be out of range.
GK pure detachments get a +1 cast/deny, as mentioned above, so the Changeling should've died a power earlier.
With the additions to your list (things like guns on the GMDK, the extra body in the understrength unit, the flamer on the Dread), your list is 2144pts. That's very not cool. And that's at the minimum low end, there could've been stuff I missed. I hope you don't play competitively.
I'm tired of bad
GK players giving other
GK players (like myself) a bad name. About 50% of the people who play
GK cheat regularly, and you fall into the bad half. Learn your fracking codex, pay your points, and do a better job.
This was a shitshow, and you guys need to get your rules down before posting videos all over the web.
But at least you had a good time.