Open up the TacMap and select the ‘Loadout‘ Tab. Then down to the left press the button for your platform to enter “Edit Appearance“.
**NOTE** You can ONLY customize your AI Teammates cosmetics, not their weapons as of the date of this post.
In the picture below, in the circle part, left side & right side are the buttons for your platform to flip to each character. Your character (Nomad), Weaver, Holt, and Midas. Name of character listed right above the circle so you know who is who.
ALL cosmetic customization options that are available for your character are available for the AI teammates. Gender, eyes, clothing, tattoos and more… Scroll down to what you want to change!
You can preset ‘Special Outfits’, a different setup for each line. Toss costumes and even Icons onto your AI Teammates. Or, just click on “Random Outfit” and let the game randomize the character you selected, the game will randomly pick the character’s appearance for you.