Most email clients do not support embedded videos, even if you could include the custom html. The coding necessary to play the video directly in the email is often considered to be a security threat, which is why all of our video blocks actually create an image place-holder, which then links back to another source. We don't currently have an integration with Bomb Bomb specifically, however if they can provide you with a link for the video, you could link any image or button to open the video outside of the email client.
At this time, only YouTube and Vimeo are available for the video block. Please keep in mind that the video block doesn't actually embed a video in the email, nor allow the video to play in someone's email program/app, it just links to the video, pulls the thumbnail, and adds a play button overlay. If you're able to get a share URL from your video-hosting site / cloud, you can include that in your email, as either a text, image, or button link.