Copied from the Official SWG Site

The Imperials have struck upon a brilliant political maneuver. They've stolen a Rebel blockade runner, filled it with explosives, and are planning to send it hurtling into Centerpoint Station near Corellia. The plan being, make the Rebels look both foolish and dangerous at the same time. They plan to use this maneuver to force the hands of Rebel sympathizers and to garner political support in the Press. Rebel spies found out about the operation just as it started, and now it's time to do something about it quickly.

Master Sergeant Crowley is in charge of this operation, and she's definitely the woman for the job. She knows it will take some time for the Empire to rig the ship, and to acquire all the explosives they need and have them transported. She needs to use the time wisely though, in order to get her agents to the Corvette before anything goes wrong.

Master Sergeant Crowley: Corellia, Kor Vella (Destroy mission; -3404 3092)

Crowley Lead 1: Impeial Outpost on Lok, in a small storage crate at -1891 -3033.

Crowley Lead 2: Dathmoir Prison in a small storage drum at -6308,754

Crowley Lead 3: Cobral Hideout, Rori (closest Space port is Restuss) at WP 5451,5025 in a bookshelf.

Important group information.
You cannot rebuff while on the corvette, when you die and clone you return to the starting point. There is also no insurance terminals on the corvette, so if you die and clone expect to suffer 5% decay with each cloning you do. Finally many of the NPCs and MOBs are extremely resistant to the usual damage types, specifically kinetic and energy. Conversely the best damage types to bring as your weaponry on the corvette are acid, blast and electricity for the most part. The Super Battle Droids are very resistant to almost all damage types, however they will agro on the Imperial NPCs on the Ship, if you must fight them your best bet is to lure Imperial NPCs to fight the Super Battle Droids. Finally, it is possible to get by most of the NPCs without agroing them, if you pick your path carefully and WALK not run past them 90% of the time you will not agro the NPCs, in this way you can complete your mission smarter, not harder.

The final piece of advice before the walkthrough begins is simply this, unless your group is extremely combat oriented and powerful and know how to work together as a team, there will be no way you can possible kill all the mobs within the 60 minute time limit, your best bet is not to try.

Upon arriving on the Corvette you begin on the Starting Level of the corvette, Starting Level, Level 1, as marked on the linked map. Your first objective is to get a keycard located on Level 2, so make your way down the hallway to the Elevator (UP) as indicated on the map. There are a few NPCs in your path, however they are the weakest of the entire corvette and should not pose much of a problem.

Once at the elevator proceed up to Level 2. Once on Level 2,proceed down the hallway to the room that has the chest which contains Data Disk 4. The disk is needed to reboot one of the computers on the Starting level so you can obtain the bridge code. The adjoining room has an armoire which can contain Corvette unique loot, also in the adjoining room are two terminals, one tells you the sequence you must perform to blow up the ship the other informs you the Super Battle Droids are hostile to all other NPCs on the ship. However after obtaining the Disk there is nothing more you need on this level, return to the elevator after obtaining the disk and head back down to the Starting Level, Level 1.

From the elevator head directly into the room labeled on the map which contains the armory and bridge code terminals. The player who obtained disk 4 will have to use it to reboot the bridge code terminal. Once you get the codes write them down, they are required to open access doors later in the mission. Once you obtain the codes proceed down the hallways to the small alcove labeled "Droid Spare Parts". A disabled R4 droid is here, inside it is a repair part which you will need to fix something later on in the mission.

You have now accessed all of the critical areas on the Starting Level, make your way to the Elevator (Down) which will lead to Sub Level 1 to continue on your quest.

Once your on Sub level 1, proceed directly down the hallway toward the rear of the ship to the engine room, it is labeled on the map as having the "Meeting Room Access Terminal" and the Broken R2 Droid. be careful when entering the room as this is where the Super and regular Battle Droids are located, remember they are Hostile toward all NPCs. Carefully make your way to the broken R2 droid and the person who has the spare part must drop the part on top of the droid. This will allow the R2 unit to disable the electrical field, giving you access to a terminal to unlock the meeting room, unlock the meeting room now.

From the engine room you must now head toward the room containing the Bridge elevator switch. Once there you need to activate the switch to enable the bridge elevators. From this room continue down the hallway back into the other side of the engine room. Once inside the room you must go up a ramp while avoiding the Droids or after you destroy the droids to a small room which has the Fuel Control. As it was described in the terminal on level 2 you must set the fuel terminal to the highest number.

After adjusting the Fuel control setting make your way back toward the bow of the ship to the room labeled as containing the Hyperdrive controls. Access the controls and again as described from the terminal on level 2 you must set the Hyperdrive controls to the lowest number. Now from this point on the map you can see square rooms located to the left and the right of the Hyperdrive controls, one of these rooms contains a chest and other searchable containers which can have the AV-21 landspeeder powerplant as well as other corvette specific loot. Also in these rooms are terminals, the left side has the port side access code, the right side has the starboard access code, however they are not required for this destroy mission. Be careful however, in one of these adjoining room is the Black Hole Darktrooper who has some resists in the 80-85% range as well as 250k HAM. On my initial foray to the corvette my team lost a valuable 15 minutes fighting just this one NPC. Once you have set the hyperdrive controls and looted all you wish to loot make your way to the elevator that goes to the Bridge. You can in this end of the corvette use your armor access codes to enter the armory to loot another armoire which may or may not have more corvette specific loot.

Use the elevator to access the Bridge. Move to the access door and enter the Bridge code you obtained on level 1 from the terminal you rebooted using disk 4. Enter the bridge once unlocked and access the Engine console and again as described in the terminal on level 2 set this console to the lowest number possible. Once completed you should get a message stating you have succeeded in your mission. Now in the time remaining make your way back to the escape pods located on Sub level 1.

From the escape pods you can return to Corellia.

Completing the mission gives you a badge ; furthermore I was told by my party member that they had to return to their starting to receive a reward which was the AV-21 Schematic (All party members get it).