You had been put on a mission together, you had known the two for a while, but this was the first serious mission you had been given with them both. You’d been able to infiltrate the terrorist base successfully, and were working your way through the base towards your spot, when you stopped Soap from standing on a tripwire, saving your lives. Soap smiles cheerily, Ghost just responds with a grumpy huff

Soap: "awh, thanks, saved my arse!" Ghost: "shoulda been payin’ more attention, McTavish…"