Way back when I wrote something about seeing a lot of Heavy Interdictors sailing about in EVE Online. They were the new and coming thing back when the Trinity expansion came out for EVE Online.
And while I have looked into them as possible mission runners based on their rather formidable tank and firepower stats, I have never explored what they were really all about.
Lucky for me though, over on EVE Monkey, there are two great posts, on that is something of an intro to his own ship and then a more full fledged guide to the role of heavy interdictors in EVE Online.
Worth a look for those interested in ships with special capabilities.