Objective 1: Establish and Maintain a Supply Line For 2 turns

Objective 2: Survive for 5 Turns.

Recommended Echelon(s): AR/SMG (x2), anything

Anything's a bit vague but all you need is something that can deal with 500 CE enemies. Literally just 500 CE enemies. You could probably have a 3 link AR solo it. Disclaimer: I have not tried to use a 3 link AR to solo it. Try at your own risk.

Objective 1 Strategy#

In objective 1 we're a race against time. You need to establish a supply line quite quickly (on turn 3) to actually succeed in clearing this objective rather than objective 2. This means we need to play quite aggressive to get things in order for the supply line.

Our first order of business is to rush down to the NPC 416 so we can take the Heavy Heliport there. The Rodeleros hanging out near the Rally node have a pretty sizable distortion barrier, so we'll want the HOC support. Once you've gotten down to the Heavy Heliport so you can secure it, deploy your third echelon on top your Command Center. With your last AP you should take the node to the left of the Heliport you start with. You'll want to make sure you keep that Heliport under your control for a few more turns. 

Turn two your immediate concern is to clear out the enemy in front of your Command Center; it will also help establish the supply line. After that, you can turn your attention to finishing up the rest of the supply line in the bottom part of the map. Pull out your HOC and get to clearing a line to the Rally node. Pull your second combat echelon down from the Heliport nearby and have it assist in clearing. This should carry over into turn three as well. Don't forget that your HOC can take nodes as well. Use that to assist in establishing the line.

If you establish the supply line on turn three, you'll be set. Just make sure nothing is going to break the supply line and you should be good. 

Objective 2 Strategy#

Deploy an echelon on your Command Center and hit end turn a bunch.

Video of me clearing this map

Objective 1

Objective 2