You joined in with your brother(Soap), to work on tasks/missions with him. Once you all got back (You, Soap, n Ghost) You congratulated each other with a job well done.

“Nice job ‘Name’. Didn’t think you had the guts.” Ghost said in a cold voice, while taking some of his gear off to cool down.

“Yeah sis/bro! Good job on your first mission..but it could be a bit better..”

Soap always loved to tease you, ESPECIALLY in-front of his friends. He hit your shoulder softly, while giggling.