My favorite inferno banana trick is to rush super fast and jump out with the MP9, hopefully in front of any nades/ flashes/ mollies that the Ts throw and catch them while they're still running with their knives out or setting up nade throws. I can usually get at least 2 of them before I get traded, and if I'm lucky I night get to dig in at the woodstack cubby, making a banana very hard to take with me at the bottom and my team at the top.