This is really dumb but I know there is a way to switch my warzone comms to basic comms but I can't remember how. My boyfriend showed me once and there was something to do with clicking the number and typing in how many I want. Clearly I have no idea what I'm talking about I'm just too proud to ask him to show me again. Help me please?

I know this is probably a dumb question but I am just wondering what are some of the common lingo used while playing and what do they mean? I am part of a guild with my boyfriend but feel lost during their conversations. Any help would be appreciated.