Easy Storyline...
I will add more to this section soon.
Introduction-
BattleTech is a game about a science fiction future.  There are many games and
books about it and they all tell about one big story.  Most of the stories are
about war and the main game is about fighting a war.  The main story is
described below.

The Future-
The story is that humans in the future could go to other planets with
spaceships.  When they traveled they could live on other planets.  All the
planets together were called the Inner Sphere.  After a long time, the planets
governments became a big government.  The big government had a big war
with someone who hated them.  The guy who hated them was named Amaris
(uh mare us).
The leader of the big government's military got a lot of people together and
left.  He wanted to find a new home where he could live far away from the old
government because he thought it would cause a lot of war.  The military's
leader was named Kerensky (kuh rehn ski).
Kerensky's People and War-
Kerensky and his people stayed far away for a very long time.  Their culture
changed and they started to love war too.  After Kerensky died, his son made a
new culture with war rules.  The new culture tried to fight wars in a good way,
but it cared too much about war.  The new culture was called the Clans.
The Old Planets' War-
Back in the original planets that Kerensky left, war was happening all the
time.  War went on for so long that people lost technology.  New inventions
and machines were destroyed in the wars.  Scientists couldn't make many new
things because their was so much war.  The war always destroyed new things.  
It was not clear who controlled the new government, and so the government
separated.  Everyone wanted to control the government.
Kerensky's People Return-
After a long time, Kerensky's people were curious about what happened to the
old government.  Some of them wanted to control the old government.  Some
wanted to help the old government to become better.  Finally, Kerensky's
people went back to the old government and the old planets.
Kerensky people wanted to fight the Inner Sphere people to see how strong  
they were.  The Inner Sphere fighters were weaker.  But there were many Inner
Sphere armies that worked together against Kerensky's Clan.  The Inner Sphere
people had to lose a lot of their planets, but they could stop the Clans for
awhile.
Living Together-
Now the Clans and Inner Sphere peoples live together.  Everyone still wants to
control or help the old government of the Inner Sphere, but the government is
gone.  Nobody knows who will win to control the  whole Inner Sphere.  The
Strikers team of this website, Mike and his friends characters, fight to help
protect the peoples living in one area of the Inner Sphere.  Their characters are
some Clan people and some Inner Sphere people mixed together.
What is Next-
Soon, terrorists will attack many of the Clans and Inner Sphere people.  The
terrorists will hurt lots of people.  The Strikers team will lose many of its
people.  They will be killed by terrorists.  But some people will survive and they
will stay alive by going far away from the Inner Sphere planets.  They will go
away, kind of like Kerensky's people.  But they will stay on a big spaceship so
they can be safe.