Static image location for PageBuilder Block

I’m trying to write a custom block that utilizes an API that pulls data off Battlelog for Battlefield. Specifically, server’s information. All seems to be good, but I want to display images for each map. The image based off what the map is called (ie, MP_Prison will display the Operation Locker image, mp_prison.jpg)

Is there any way to … hard-code in the locations of the images, based on where the script is running from, without having to us a field_upload for 12 images? I have a folder that has the 12 map locations, that I would prefer to just access statically, instead of uploading it to the Media section.