Objective: Establish and maintain a supply line for 2 turns. 
Recommended Echelon(s): AR/SMG x2

Doable with 1 echelon, but extremely annoying. Just deploy two. 

Hi, welcome back to Jupiter Cannons. This time, thankfully, they're pretty bustable. It'd be real nice if I could just recommend that and call it a day, but nope. Even a parachute would work wonders to make this map suck less. But here are, doing the long way.

As is, without any special tactics, you have two venues to establishing the supply line. The first, maintaining a line through the path you use to get to it. Cause there's only one way in there without busting out special tactics. Pretty easy, feels like the game encourages that with the closed heliport you can take on that route.

Second path is taking a route through the one way near the uncaptured heliport in the middle of the map. This one feels a bit more awkward to do, but it's an option.

I prefer the first option, as it flows pretty nicely. Because of this, we'll be using it for this guide.

On turn 1, you should take the closed heliport.

Turn 2 you'll want to deploy your second echelon on your Command Center, then use your first echelon to ensure that the heliport in the middle of the map doesn't get surrounded. You'll need it to resupply your first echelon. 

Turn 3 is where you'll defend your Command Center as well as take the last node you need for the supply line to connect to your Command Center. 

Turn 4, slowly move up to the Rally node. Make sure your Command Center is guarded.

Turn 5, take Rally node.

From here it's just waiting for the supply line.

Video of me clearing this map