Trilon Industries IG-2000
This is IG-88's custom Aggressor, the IG-2000. I have become more interested in the IG-88 character after the Clone Wars depict them as battle droid variants, and the appearance of the IG-banking clan seem to support the idea.
The IG-2000 is usually seen with it's wings folded in cruise mode, these can whip out as the vessel accelerates to pursuit mode. It has a pair of front mounted tractor beams which can fold out to engage, slow and hopefully stop any ship unwise enough to try and run. Boarding the ship is then possible via the ventral hatch.
Weaponary is includes two laser cannon mounted on the backs of the tractor emitters, and an ion cannon housed under the fuselage.
Inside noteworthy features include the mini-med bay. With the flip of a switch the FX series droid activates and rolls out on it's tracks whilst the disgnostic and support bed folds down from its cubby. Having a single engine means access to it in flight is essential, especially in the absense of droids. If needed the engine splits down into it's two major componants, the reactor and the drive system, and each rolls into the cargo bay on tracks. These two bits can further be rolled to the sides of the bay for easy access. With these devices safely stowed in cargo bay access is possible to the twin hyperdrive generators housed, normally, either side of the main engine. Since IG-88 is perfectly capable of leavig the ship in vacuum to effect repairs he has negated the ability to retract the engine fully.
The cargo bay has been converted to hold eight small containment cells for captures. IG-88 is, I figure, not concerned with their comforts or needs. I tend to see it hosing out these after a day or two of occupancy.
In line with 88's basic nature it ought to be noted that under normal cruise the 2000 is open to space. 88 doesn't need air, and as long as his captives remain in their sealed enclosures, a barrier of hard vacuum is just another security policy.