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Mk5 shields are available in Behemoth, Steady or Dashing configurations, just like the regular engines (Mks 1-4). They are offered for sale in pairs, in exchange for either of two collections of rare items found in unique lockboxes.
Warning
If you're playing the campaign game start, try to find the Relics in Maelstrom before the plot has you attacking Xenon stations to avoid accidental destruction of the lockbox's contents. See SonOfToastie's explanation here.
Tips
Although the lockboxes containing the items are indestructible, the items themselves are not - and neither are the locks!Whilst the items are stored within indestructible lockboxes, their locks can be opened by stray fire or explosions if we are in the same area (same zone or neighboring zones) as the lockbox. If we don't find and collect the item after the lockbox is opened and the item is released into space, there's a chance they themselves could be destroyed and lost. So be careful with exterior explosions (AOEs penetrate models), and avoid shooting the expelled item after the final lock is opened (See Toastie link above)!
Tips
The Skunk can equip two shields simultaneously and the completion of either mission allows the purchase of both. The duplicate mission can be considered a chance to reconsider an earlier choice or a second chance in case of misfortune. Although the MK5 shields are given to the player for free, old shields are still refunded at normal rates (as with any upgrade). This means that when upgrading from MK4 to MK5 shields you will still technically gain a few million credits, despite not having chosen money as the reward.
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