Warcraft III: Reign of Chaos/The Spirits of Ashenvale

Two days later, along the borderlands of Ashenvale forest....

Mission Objectives
🇨🇴
 * Main Quest - Stash and Burn
 * Amass 15 000 lumber

🇨🇴
 * Optional Quest - Furbolg Chieftain
 * Slay the Furbolg Chieftain

🇨🇴
 * Optional Quest - Destroy the Trees of Life
 * Destroy the Trees of Life

🇨🇴

Strategy
The mission starts off with an ambush from the Night Elves, have Grom and his troops take care of ambush and proceed north until Grom finds another gold mine. Grab a peon from the main base and have him build a Great Hall next to the newly found gold mine.

Have Grom travel east from here to the goblin workshop to start the optional quest "Furbolg Chieftain" the Furbolgs have been giving the goblins trouble, so after slaying the chieftain the goblins will let Grom use their Shredders which help with the lumber gathering quite a bit. Have Grom's forces stationed east of the mine to intercept a few Hippogryph fliers, make use of the Raiders "Ensnare" ability to let your melee units be able to attack them. Be sure to replace any lost units! Research the "Pillage" ability, hire a grunt and have him join Grom's forces and hire three more peons at your main base and have them ready to collect gold at the gold mine.

Build two Orc Burrows west of the newly built Great Hall in a way so you can place a Guard Tower in between them and another on the opposite side of the lower Orc Burrow. Now start bolstering your army by making sure you have at least a Shaman, five Raiders, three Grunts and a  Catapult. From the mines, start moving southeast with your new army until you see the Blue team's base; here, you will see an Ancient Tree, destroy it to collect three thousand lumber! build another Raider, select a War Mill and research everything and take your army back to the mines.

Take Grom and move him towards the small circle on your mini map, it should be west of the mines, use Grom to soften up the first wave of Furbolgs and bring them back to the mines so the rest of your army can finish them off. Recruit 3 more grunts, a Catapult and a  Raider plus upgrade everything at the War Mill again. Take two Raiders and two Grunts with Grom to finish off the second small wave of Furbolgs. Before engaging the Furbolg Chieftain make sure you have at least two Raiders and three Grunts with Grom; also, make use of Grom's Mirror Image technique, with this you should be able to take him out with ease. Train two more Grunts and three more Raiders and now with the Chieftain dead you can collect your reward from the Goblin merchant! He will present you with two Shredders which will collect Lumber at a much faster pace than the Peons.

Take Grom and his army and head directly west from your main base, you will eventually run into another one of the Night Elf bases which will contain yet another Ancient Tree. Do your best to destroy as much Night Elf structures as you can, when you are running low on troops retreat back to the mines to build your troops back up again, in the mean time send Grom directly north to deal with a few Night elves and to destroy an Ancient Tree. By now you should almost be nearing our lumber quota, take Grom and head directly northwest to collect a Tome of Agility, before entering the circle use Mirror Image to make this fight against the Forest Spirit a little easier.

Beside the Blue base is a mine Guarded by a few Night Elves and a hero, send Grom in to dispose of them and build your new Great Hall here. Grab all your Peon's that were mining the previous mine and send them to the new one, also build two Guard Towers at the northern entrance, keep an eye out for your outpost where the old mines used to be at, there will be a few rushes from the Night Elves here.

Just keep on defending until you have reached your quota which should be very soon. By collecting 15000 units of lumber the mission will be won.