The main update here regards fuelling the Helicopter.

Before, it was thought that if the fuelling equipment broke, you could no longer escape via the Helicopter. This is not entirely true, as if it finishes fuelling, you can always escape with it, regardless if the fuelling gear gets broken or not. This however, leads to situations were you cannot show in the journal that you managed to fuel the Helicopter before it broke. However it can still be proven that this happened.

The fuelling process takes 84 seconds to complete, and after completion you will see 'Task Completed' popped onto your screen. If it gets broken, you'll see 'Objective Updated'. Both of these can happen, but as long as you see 'Task Completed' before the other one, you'll be fine.

But if you're completing tasks down at the sub while this is happening, it can be a little tricker, as then you'll get multiple 'Task Completed' messages, which may interrupt the 'Task Completed' from finishing fuelling the Helicopter, or the 'Objective Updated' if it gets broken.

So, here are the ways to prove the Helicopter was fuelled properly:

• Show the Objective journal (the easiest way). Once it shows the process has finished successfully, it doesn't matter whether the cart was destroyed after that. Even if there're other ways to prove the fuelling, you'd better to show the journal anyway
• Mark "Task Completed" which appears on the screen exactly after 84 seconds from the start of the fuelling
• Mark "Objective Updated" appeared later then 84 seconds after the start of the fueling
• Chase music theme isn't interrupted in 84 seconds after the start of the fuelling (but it may be interrupted after 84 seconds when it doesn't matter whether cart is intact or not)