Help!:D please i r nublet

[A newb]

The Pillar of Autumn - a10.map
Halo - a30.map
The Truth and Reconciliation - a50.map
The Silent Cartographer - b30.map
Assault on the Control Room - b40.map
343 Guilty Spark - c10.map
The Library - c20.map
Two Betrayals - c40.map
Keyes - d20.map
The Maw - d40.map

Can some one tell me the themes of these maps like where they take place i know pillar of autumn is on the ship and halo is like whne your getting off the ship and landing on the halo
and truth and reconsiliation is on the cliff area with those bases resculing survivors but the rest im clue less i know one is in a jungle one on another ship but which ones o_O thanks

[Ayumi]

Why does it matter? >.>;;
And you got two out of three wrong.

a10 - on the PoA looking for a way to escape
a30 - going from crash site to evac point
a50 - sneaking aboard a covi ship to steal a transport
b30 - finding the silent cartographer for a map to the control room
b40 - attacking the control room
c10 - waiting for pickup, MC stolen by spark at end of level
c20 - in a forerunner library, searching for the Index (Halo's key)
c40 - going to damage Halo's generators to delay the firing
d20 - getting the implants from Captan Keyes on a (flood-infected?) covi ship
d40 - blowing up Halo with the PoA and making a dramatic escape

[Kayar]

d20 - On the crashed Covie ship, searching for Captain Keyes. You find his flood-infected remains encrusted to the floor of a control room?

[Dirk Gently]

c40 is going to stop the generators in the area where Assault on the control room was. and d20 is getting the implants from keyes.