Artzin's english is perfect for a second in the mibr comms video I thought verno was talking because Artzin sounds exactly like an American
They full comm in english and depending on the situation and who they're with, they'll comm in potuguese. (EX. Aspas and Cortezia are holding a site alone). Although Verno said that he knows the basics and can sometimes self-translate.
Source: Sen Podcast (IDK if they talked ab it in the YT Vid but its in the uncut version)