The The Butcher's BBQ Pack Add-on for Payday 2: Crimewave Edition has 4 trophies - 1 bronze, 2 silver and 1 gold.
Have 10 enemies burning simultaneously.
Kill 10 enemies within 10 seconds using the Piglet Grenade Launcher without using Incendiary rounds.
Set an enemy on fire and kill him with the "Motherforker" melee weapon.
Set a Bulldozer on fire for at least 10 seconds.