The cloaking from picking up and installing the Mystery Package is somewhat different from the Swallow's cloaking. The Swallow's cloaking only takes you off of the radar screen. You still show up in the Radar Range menu. The Mystery Package's cloaking prevents your appearing on the Radar Range Menu.

In fact, the only way you can be targeted when the Mystery Package's cloak is active is to be sighted and targeted using the "target object in reticule" function -- the "t" key by default.

To activate the Mystery Package's cloak you must be at or below 100ft relative altitude. Relative altitude is shown in red just to the right of your center reticule. The white number is your absolute altitude and doesn't apply to Mystery Package cloaking.

The Mystery Package's cloak can come in handy in a variety of situations:

1) Salvaging. When salvaging cargo, get low enough to activate the cloak. This makes it difficult for pirates to target you or determine what cargo you have. Flying low away from the salvage area often prevents a pirate from blasting you immediately upon the retrieval of valuable cargo.

2) Entering and exiting hangars. I hate this. You get a full load of valuables and as soon as the airlock opens, some pirate starts blasting away at you. The Mystery Package cloak prevents this and is always on when you are in an airlock.

3) You can make a "stealth" approach on an enemy target. Stay low and the enemy won't know what hit them. Especially useful when passing through the craters of an enemy faction.

Gettng the Mystery Package is part of Hardwar's plotline. Here's how to get the Mystery Package. Online players can start the plotline with the God Hanger to get the Mystery Package.