5.2.2 Deploying from craft
[NET] Keep a grenade in hand as you deploy since sometimes there
are enemies right next to your landing craft. Grenades should
also be used to reduce any cover close to your craft.

[KSC] Only deploy two soldiers at a time from Skyrangers or
Avengers. Next to the landing gears is good. If you deploy all
of them at once you invite grenades and blaster bombs. Move the
two away before deploying the next two.

5.2.3 Spread out and cover each other
Bunch up invites enemy attack you with grenades, or worse,
blasterbombs. Stay about four to eight squares apart.

Aliens DO attack from behind sometimes, so try to have two
troopers who can watch each other's back. This is ESPECIALLY
important when going up against Chryssalids, who moves extremely
fast [~120 TUs!] It will turn your soldiers into zombies in a
blink of an eye... One player reported losing the entire squad
to a single Chryssalid on a terror mission! It pays to watch
each other's back!

Here's a simple demonstration with a four person fire team:

A A

C C
===>>
B B
... Далее >>