There aren't any explosive grenades in Assassin's Creed Black Flag Resynced, but a handy exploit lets you make some on the fly. Players have discovered a way to turn smoke bombs into impromptu fiery weapons to handle multiple enemies – but you really need to be careful when using it.
On Twitter, Assassin's Creed fan account Zephryss posted a clip of how it works. First, you throw the smoke bomb, and let it start filling the area. Then, using your pistol, shoot a bullet right at where it landed, and you'll get a nice little explosion. "Here's an insane secret trick," they say.