Effectively combining the trapping power of interdictors with the defensive capabilities of heavy assault cruisers, the heavy interdiction cruiser is an invaluable addition to any skirmish force, offensive or defensive. Heavy interdiction cruisers are the only ships able to use the warp disruption field generator, a module which creates a warp disruption field that moves with the origin ship wherever it goes.
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.