Uhh yeah... Right, tlaloc is the warlock exclusive exotic you get by levelling up our two with the gunsmith. For the hunter you get the ace of spaces hand canon and the Titan gets the Fabian strategy auto rifle. If you didn't already know all this then once you get the gunsmith to rank 2 you get a mini quest for a legendary secondary weapon exclusive to each class and then at rank 3 you get the exotic quest. It doesn't take long, maybe around half an hour to 45mins for all three classes once you've got the quest. As for a scout that can go head to head with tlaloc then I'd suggest the Boolean Gemini - it's a beast of a scout with really good range, decent ammo cap, nice fire rate, decent stability that's pretty easy to control and puts out a good dps - like three shot kill headshot from full shields... I'd also recommend the last extremity and hung jury, both are really good scouts and depending on your perks can be quite beastly in both pve and pvp, my hung jury has zen moment where just dealing damage increases stability.