The Federation doesn't have friends everywhere. In particular, the Xindi feel that they need to defend against Federation encroachment. To do this, they use the Calindra Aquatic Cruiser. It's going to be in Wave 28 for Star Trek Attack Wing, and you can get a look at it in this preview.
Being one of the largest Xindi ships out there, the Calinda Aquatic Cruiser is certainly well-armed and armored, but that also makes it rather slow. Though you get one less weapon upgrade, he gets two tech upgrades and a shield. Added to that, you can pitch a blue target lock from your ship to let you reroll all of its defense dice. So if you want to get this ship off the board, you're really going to have to work for it.