Former GUNS N' ROSES and current VELVET REVOLVER guitarist Slash has posted a short message on Twitter regarding the new MEGADETH album, "Endgame", stating simply that it "sounds killer!"MEGADETH mainman Dave Mustaine was clearly flattered by Slash's remarks, writing in an online post, "Slash and I have been friends for a really long time. I have played in concert with his band, and jammed with him in a cover band once. We used to hang and party, true, but I dug Slash the most for his amazing talent on guitar. I am honored he said that he likes it." According to Hits Daily Double, the companion web site of music industry tip sheet HITS, "Endgame" is on track to sell between 40,000 and 45,000 copies in the United States in its first week of release. MEGADETH's previous album, "United Abominations", opened with around 54,000 copies to land at position No. 8 on The Billboard 200 chart. This was more than the 46,000 first-week tally registered by its predecessor, "The System Has Failed" (which debuted at No. 18 on The Billboard 200 chart), and was a bit less than the 61,000 opening number of 2001's "The World Needs A Hero" (No. 16). "Endgame" was recorded at MEGADETH's brand new, self-built studio in San Marcos, California — Vic's Garage — which was named after the legendary and iconic Vic Rattlehead character. The CD was helmed by MEGADETH mainman Dave Mustaine and British producer Andy Sneap (EXODUS, NEVERMORE, ARCH ENEMY, MACHINE HEAD).