4x0n

Haven't played it but got this off of Gamefaqs:

Mission 8 - The Chapel (TC)
Objectives:
Use vehicles to destroy the Chapel doors (You don't need to use vehicles)
Stop the Chaos before they are able to release the key
Reinforce the outpost before it is overwhelmed by Chaos forces

Secondary Objectives:
Cleanse the Chaos Taint at the chapel

Review:
I personally don't like this level, since you have to use Assault marines, and I
don't really like them that much. Also the level itself is easy once you get
rescue a base on the other side of the map.

I want to note that now you are fighting Chaos troops. Most of their troops are
Heavy Infantry, so now have at least 2 Plasma Guns in each squad.

Once you start, order a Servitor to build a Chappel-Barracks, and build another
Servitor. Order the newly built Servitor to build a Plasma Generator. Order the
Assault Marines to capture the nearby Strategic Point. Then set waypoints for
the other 3 closest waypoints near your base. Select your Force Commander,
Librarian and Apothecary and put them into a group. Be sure to keep the
Apothecary behind the Force Commander and Librarian. Make sure the enemies
target them, then send him in to battle also. Once any Strategic Points are
captured, be sure to cap them off with a Listening Post as quick as you can.
Also work on an Armory and at least 1 more Plasma Generator.

Start attacking the Strategic Point near the your base to the south east. There
are only some Cultists, they are basically a meat shield (Says so in their
description). Now head to the closest battle between Space Marine squad and
Chaos Space Marine squads. Set your Force Commander and Librarian on Ranged
stance, or else they may just spaz around. I think is because they try to find a
path to them, and the AI can't find any. Also be sure to use Smite when you can.
You may want to get Plasma Pistol upgrade, since it is good against the Bridge
attackers. Be sure to keep the Apothecary out of range of the enemy. After a
while, they may send in some Raptor Squads, be careful to keep your Apothecary
out of the fray until they target your heros. Once the North bridge is clear,
head to the South bridge to help out.

The next good Strategic Point I think is the northern bridge Strategic Point.
The next is the Relic near the south strategic point. The south west most has
Chaos Space Marines there, that's why you should skip it for now. Once the South
bridge is clear, clear the south west next. I would not capture it with your
Assault Marines however. Build a Scout Squad to capture it. Jump over the South
bridge with your Assault Marines and head straight for the Strategic Point at
the base under attack at the south east of the map. Skip all of the enemies.

Now I would take out one of your servitors at your base and build 3 at the
outpost. Start repairing all of the Heavy Bolter turrets if they are damaged.
Now make your Assault Marines capture the Strategic Points within the outpost.
Once the Repairs are done, send one of your Servitors to build a Sacred
Artifact, another to build a Chappel-Barracks, and the final one to build Thermo
Plasma Generator. Get to work on upgrading all of the Listening Posts at your
first base to Heavily Fortified Position add-on. Then get to work on the
Fortress add-on. Once they are done, get to work on a Orbital Relay, and any
Plasma Generators you want.

I would recommend to start working on Dreadnaughts or Terminators. You already
have 2 Machine Cult so you can save that money which is nice. Be sure to upgrade
all of your Terminators and Dreadnaughts with the Assault Cannon upgrade. Once
either group is ready, send them out to the objective marker, which are the
Chappel doors. There are a lot of Chaos troops in the area. But it should not
pose any threat to all of your troops. Be sure to the attack the Listening Posts
along the way, but just skip capturing them, it's a waste of time. Once you
finally reach the Chappel doors, do not attack them for right now. Head to the
most north east Strategic Point. Then go a little east and the Imperial Guard
will arrive, but they have betrayed you! Just mow them down with the Assault
Cannons (Bwahahahaha).

If you want to, attack the Chaos Base at the North West part of the map. It has
about 14-20 Heavy Bolter turrets at the entrance, so be careful if your using
infantry. I recommend building a few vehicles to destroy some of the Heavy
Bolter turrets. Also the Force Commander's Orbital Bombardment to take out a few
of them as well.

Now order your Force Commander to start an Orbital Bombardment while your troops
are attacking the Chappel doors. It should fall quickly. Then destroy any
remaining Imperial Guard and Chaos forces nearby and you should win. At least I
think so, since I have only beat this level once on Normal mode. Some reason
each time the Imperial Gaurd should appear or when you get to the Chappel Doors,
I get a Fatal Scar Error, or something like that.

And also:

-{a9. Mission Eight - The Chapel}-


The first part of this mission may be confusing initially, but it's actually
not that bad. What you need to do is build up a medium-sized army of Assault
Marine Squads at your initial base and then jump across the chasm. From there,
you have to head to the base on the far right of the screen and capture it.
Once you get there, the Force Commander, et al, will show up as well.

But you should capture everything on the side of the chasm you start on first.
This goes hand-in-hand with building up an army, though, so don't worry. Plus
there won't be a lot of resistance to begin with. Begin by constructing a
Plasma Generator, then Armory and Listening Post. Go around with your Assault
Marine Squad and three leaders to capture the surrounding strategic points.
Start producing more Assault Marine Squads from your Chapel-Barracks once you
get the resources. Also upgrade to monastery, upgrade Listenings Posts, learn
Plasma Generator and Listening Posts techs, etc. -- this stuff should begin to
seem like second nature by now.

Ideally, you should get to Fortress Monastery by the time your Assault Marine
Squads jump, but if you're more tech-centric you might only get close. The
ideal place to jump from is the second platform down (in other words, the one
the imperial army lost at -- you'll have to fight your way to the base, hence
why we built up an army) The base is basically southeast from there.

Once you arrive, as said, your leaders immediately appear there. This is good.
You should start capturing the strategic points here, too. There's even a Slog
Point nearby that you can build a Thermal Plasma Generator on. But what you
should really focus on is pumping out Predators from your two Machine Cults
there. The longer you wait around, the more troops that will start to pound at
your doors. Your ground forces should be sufficient by now, at least on normal
difficulty, as you only need about 5 or 6 fully upgraded Assault Marine
Squads. But you should train some Space Marine Squads to guard behind you just
in case there is an attack. And there might be.

You might also want to leave a Predator or two behind. Taking four to five
with you is essential, though. There are a lot of enemies outside the chapel,
plus the door is hard to break through, and even when you do get through,
there's another battle waiting for you there with some traitorous Imperial
troops. This battle won't be much tougher, if at all, than some of your
previous battles, but it can sneak up on you quick so don't give your troops a
waypoint and then just look away and forget about them. This isn't the kind of
map you want to make big mistakes on because, as the enemies attacking you
increase, you realize just how useless those Heavy Gun Turrets can be.

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