Main mission objectives:
1) Assist loyalist forces
2) Reach Allied reinforcements
3) Establish contact
Possible drop zones:
A) South section of the railway station
B) Alleyway, near one of the endangered zones
Both drop zones are equally interesting this time, however they offer different approach tactics. If you decide to choose the first drop zone, you will have an opportunity for a slower and much safer start of the mission. You won't have to participate in any fights right away and you will only kill a few soldiers on your way to your first mission goal area. If you've chosen the second approach, you will find yourself under heavy fire from the rebel forces. It's going to happen right away, so you will have to be very skilled and careful not to let anything bad happen to your squad members. As a result, I'd strongly recommend choosing the first drop zone. If you plan on going with the second zone, you may skip the first part of the guide, however you must remember to avoid being surprised by rebel forces.
Now we should focus on your team. I wouldn't recommend changing anything here. The default setting seems to be the most suitable one. You could only make one exchange by taking a soldier with a grenade launcher. This is not necessary, however you would be able to take out larger groups of enemy units more efficiently. Don't worry that your main character doesn't have a weapon with a scope attached to it. You won't need it early during the course of the mission. The second part of this level will require you to deal with a lot of snipers, however you will be allowed to use the Mule, so that's when you should make the exchange.
Red arrows represent suggested routes to all of your main goal areas. Check the main description for this mission if you want to find out more. This picture was added only for a better orientation. A and B icons are two possible drop zones for this mission. You will have to choose between them before proceeding any further. The exclamation mark icons represent mission goal areas. You will have to go there in order to fulfill main mission objectives.