For the BATTLES your task is to defeat the enemy forces and collect their tokens in order to win the Battle. You also need to deny the enemy your tokens to stop them from scoring. The first side that reaches 100 points wins.
Completing this on Normal Difficulty unlocks the Achievement: Off to a Good Start (15g) Win any Battle Mission on Normal Difficulty against the AI.
Collectibles x5
It is important for you to understand that there is no location system for plotting coordinates in this game - and a consequence of that is we have to be very touchy-feely eye-bally when it comes to leading you to the collectibles.
Another point you need to grasp is that the rules for that Star are that you have to collect ALL 5 and then WIN. Right, no pressure, we can do that, easy-peasy! Err. Yeah.
To make this easier for you we have created a video that shows the collectible locations and us collecting them. That should make this a LOT easier. But to help that along, and considering that there is no mandatory difficulty level, you should probably do the collecting on Normal Difficulty.
When you collect the final collectible and win, you will unlock the Achievement: Scrap Collector (40g) Earn any Collectible Star.
After you complete your collections and the Normal Difficulty Star you just need to work your way through the other Difficulties - or not. See that is entirely up to you - but if you do decide to do them bear in mind that it is probably not going to be a single try deal. Just saying.