As you can see on the screenshot, there is a large med kit box. This probably is one of the behaviour modules, so our companion could act as healer.
But what about the one mounted on the campanion on the image? Is it something like a mobile field radio? What else do you think?
Here is a first teaser from twitter regarding the light kits:
[COMPANION ACCESSORIES PACK] Here's a sneak peek at the Light Kits you can equip your Companion with if you own the DLC! Make your friend look 👻ominous👻! pic.twitter.com/4LCcvn7jKi
[COMPANION ACCESSORIES PACK] Your Companion can use some more armor to set it apart from the other Machines and prepare it even better for those endgame fights.
But more importantly, it will look extremely cool!
And here are some infos about the behaviour modules. THEY SOUND GREAT.
[COMPANION ACCESSORIES PACK] Want to give your Companion some extra functionality beyond shooting, carrying your stuff and looking cute? With Companion Accessories, you can enable it to spot enemies, loot automatically, or heal you using Medkits! Which one will you make use of? pic.twitter.com/yFmDOQL4mf