h. Chapter eight: Under the Burning Sky (ROCWU8)

Begin by rounding up and hotkeying Crypt Fiends and Arthas. Kill the Necromancer to achieve low upkeep, which you should maintain throughout the mission.

Send an Acolyte to haunt the gold mine in the southeast corner of the summoning area. Train four more Acolytes and rally them to this gold mine.

Upgrade creature attack and carapace from the Graveyard. Begin building Ziggurats at each entrance (north, east, and north of your base). Start with 5 at each location and add more as resources allow. Unsummon spirit towers at entrances (except west) and consolidate defenses near the altar.

Prepare for the first attack with Arthas and Crypt Fiends, focusing on siege units.

Upgrade the 15 Ziggurats and then upgrade your Halls of the Dead to a Black Citadel.

Prioritize eliminating Steam Tanks; focus all available resources (towers, units) on them.

A secondary objective for Goblin Land Mines will appear; retrieve them when time allows. Crank out Spirit Towers at each entrance. Train more Crypt Fiends if lost, up to 40 food, but do not exceed it. Most resources should go to towers.

After the first row of Ziggurats is built and upgraded, get the next level of Crypt Fiend upgrades. Once the Black Citadel is finished, get Ghoul Frenzy for improved lumber harvesting and train two more Ghouls. Ensure you remain in no upkeep.

Build another 5 towers at each entrance and upgrade them. If the southeast gold mine is attacked, kite enemies to your east side defense.

Around 24 minutes, you will receive three Felhounds. Add them to your attack group and ensure they survive. Save before each attack; reload if they die. These are crucial against Steam Tanks and do not consume food.

Monitor resources, especially lumber. If you have excess gold, build another Graveyard closer to the trees. Utilize harvesting efficiency with your 6 Ghouls. Reorder ghouls to the nearest tree and unsummon the old graveyard. Get the final Crypt Fiend upgrade when possible.

You will face more attacks. North/west areas are targeted by Steam Tanks and air units; east by infantry and an Archmage. Focus Steam Tanks and Gyrocopters first in the north/west. Watch out for the Archmage's Blizzard; focus him down quickly. Rebuild when 2-3 Steam Tanks attack simultaneously. Hotkey towers on each side to focus on Steam Tanks and heroes.

Around 20 minutes, you will receive 3 more Felhounds. Keep them alive. Once Graveyard upgrades are in progress and you have 10 Spirit Towers at each entrance, build another row of 5 at each entrance (total of 15).

Rally your Crypt Fiends and Felhounds back to Kel'Thuzad to easily meet incoming attacks. If you need an Acolyte for repairs or Ziggurat building and are at 40 food, pull one from gold temporarily or kill a Shade. If you have excess lumber, kill a Ghoul, but you likely need 6.

Around 15 minutes, you will receive another 3 Felhounds. Create a separate attack group for them (Group 1) and Crypt Fiends (Group 2). Prioritize healing Felhounds; Crypt Fiends are replaceable.

Build another three towers on each side of your defense grid, for a total of 21. Do this with spare resources after all towers are upgraded, repaired, and replaced as needed.