Paragon has just released their LK 25M HC tactics on thier site, as well as their killing video.
Video Part 1:
http://www.youtube.com/v/Fh7kQkQkLik
Video Part 2:
http://www.youtube.com/v/Z2ZlnPk7Bwk
Video Part 3:
http://www.youtube.com/v/HKDLXauhy7E
You can read the tactics here:
Paragon - EU - Lightning's Blade
The second guild to down LK 25M HC was For The Horde on EU-Nazjatar. Congratulations to them!