As of now, "Collection" option in the builder suffers from being implemented in a very lazy way. Some models/cards are outdated, some are simply absent.
It is to be updated so it pulls from the same source Builder/Browser does, but for now it's just a standing issue.
As a temporary solution to that, simply use Browser to find the item you're looking for or use Builder spawning a squad with it. These are up to date.
As of now, "Collection" option in the builder suffers from being implemented in a very lazy way. Some models/cards are outdated, some are simply absent.
It is to be updated so it pulls from the same source Builder/Browser does, but for now it's just a standing issue.
As a temporary solution to that, simply use Browser to find the item you're looking for or use Builder spawning a squad with it. These are up to date.