Specifically engineered to fire torpedoes, stealth bombers represent the next generation in covert ops craft. The bombers are designed for sneak attacks on large vessels with powerful missile guidance technology enabling the torpedoes to strike faster and from a longer distance.
Viziam ships are quite possibly the most durable ships money can buy. Their armor is second to none and that, combined with superior shields, makes them hard nuts to crack. Of course this does mean they are rather slow and possess somewhat more limited weapons and electronics options.