🚀 go-pugleaf

1) Defending against alien raids is by no means easy. The good news is that
unless your doing particularly brilliant,  those scum sucking Lizard looking
aliens won't bother approaching your bases for a quite a while. However once
those alien battle ships start hovering towards your  base, Its knee knockin
time.

2) To defend a base  affectively, you need to do everything possible to
raise your defence rating.   If you prefer not to fight in your own base,
you need to be looking at something like 3000-3500 plus grav shields.
Three fusion ball defences and grav shields usually do the job, defending
the base completely.

3) If you dont have the equipment to fight battleships as they fly in, your
going to have to fight them on the ground  once they penetrate the bases
outer defences.  If so  you can expect to see tons of aliens on such a raid.

PS, You'll normally find that before a raid small UFOs scout ahead. If you
can destroy these before they can detect your base's location, you can
prevent the main attack.

4) Should things get too sticky, you can dismantle your base completely by
first removing all facilities and transferring all your staff and equipment
elsewhere where possible ( unless you've finished with them obviously). The
final act in leaving a base is removing the access lift itself.