Call of Duty: Warzone got a wealth of new content with the recent launch of Season 2, including new points of interest, a limited time Zombie event and new Prestige levels. Among all this new content, a few new weapons found their way to the standalone battle royale game, two of which have extremely rare variants - the Rook LMG and the Serac.
New Weapons in Warzone Season 2
Season 2 brought several new guns to Call of Duty: Black Ops Cold War multiplayer as well as Warzone, including the Raal LMG and the CX-9 SMG. Both of these new weapons are effective on the battlefield, but neither exactly shatter the meta, as it were. That said, we're talking about the regular variants here.
Players have discovered that both of these guns have much rarer, and thus much more powerful variants. Getting them, however, is no easy task and much luck is required. The Rook and Serac are appropriately powerful for their rarity, and can turn the tides in a match outright. How to get the Rook LMG When you absolutely, positively, definitely need someone to not be alive anymore
The Rook LMG is a Legendary variant of the Raal LMG, featuring a silencer, increased damage and decreased fall-off making is much more accurate than most weapons of this category typically are. What little first-hand accounts we've seen online, this is an absolute destroyer, easily mowing down enemy operators.