Bonus Mission: The Crossing Difficulty: Hard Heroes: Prince Kael, Lady Vashj Significant Items: Orb of Slow Side Quests: None

Tower Defense! I never thought I'd ever be writing a guide to Tower Defense, but there's a first for everything. Now first of all, I shall make it clear.

You do NOT need to pass this mission to continue with the Campaign.

However, if you do pass the mission, you gain Control of a Pandaren Brewmaster in the next Mission! And When it comes to it.. any help is welcome! What's more, the Pandaren is just cool! What's more, this map allows you to get an Orb of Slow, quite an useful item.

Hero Development Guide:
None of your heroes will rise levels in this map.

The Tower Guide:
In Tower Defense Maps, you basically build towers. By killing enemies, and collecting Gold Coins from bosses, you will get gold. With this gold you can build more towers. The enemy computer, sends wave after wave of guys that'll run past your towers, trying to get to your Portal. Each person who reaches the Portal will take its life down by around 4%, so you can let no more than 25 units through. Got that? Good, lets what what sort of towers you can get, and how to use them:

Boulder Towers:
You'll get these right at the start. They do a decent amount of damage, but fire slowly and are slight inaccurate. Furthermore they cannot attack air. In my opinion, these towers suck! Do not build them! Full stop.

Energy Towers:
Also available at the start. These towers will all that you build tell better towers become available. While they don't do much Damage, they don't miss and can attack air. At the start, build these towers in locations where they're within range of a lot of troops (ie: around the inner corners of roads, along places which are boundaries to two roads, etc). But scatter them. You don't want to fill up all the good spaces, as you'll want better towers there in future.

Fire Towers should be your staple tower one's it is available... till you can Build Death Towers.

Fire Towers: Once they're available, at around the 10th Wave, stop building Energy Towers and switch to these altogether. Build them in nice clumps are good locations. They do keeps of damage, and as they attack super fast, not much damage is wasted on dead units.

Cold Towers: Once they're available, still stay with Fire Towers. However, in front of each clump of towers, build 1-2 Cold Towers. While Cold Towers don't do much damage, their slow effect gives your other towers more shots.

Death Towers: These are available near the end of the game. They're extremely powerful, and can deal 500-700 damage, and are the only towers that can damage the last few waves. Switch to them completely, and build them everywhere,s tarting from the most optimal locations. By the end, you should have whole rows of them... remember to have Cold Towers in front. Their effectiveness is doubled if enemy units are slowed.

All towers can be upgraded to advanced versions. In general, it is much more cost efficient to upgrade a tower than build a second one. Upgrade all of your towers

The Tower Defense:
The game starts with a wave of peasants, easy. Start building Energy Towers right away. For the first Dozen Waves, units have very low HP, and so your heroes play a major role in stopping them. Use Flamestrike and Forked Lightning effectively on the few that get past your towers and you'll have no problem. Train a third worker, and have 1 worker at the top 1 near the portal, and 1 at the middle. Remember to use all your gold.

In most waves, there will be 'boss'. The both leads the wave and soaks up all the fire. Killing him will Drop Gold Coins. In general, keep your heroes near the enemy gates before each wave, and have the Naga Sea Witch chase the bosses, who're slowed by Cold Arrow. This ensures that your heroes are close by to pick up the coins (which are really useful).

Once Fire Towers are available, just repeat the above using Fire Towers. Now your heroes won'e be so essential for stopping enemy units.

Move both heroes up to the enemy gate, and have Kael Flamestrike the towers guarding the gate. Hit the crates nearby, there's a Rune of Restoration, which provides you with extra mana. Once the enemy towers are destroyed, your heroes are free to start by the gate and pick off the next wave of troops!

You can actually Flamestrike the enemy before they get out of their gate... Just remember not to kill the Boss, or no gold for you.

Banish their lead boss, and Flamestrike them all! Muhahaha! This way, you can severely injure or even kill some members of each upcoming wave, it makes the job so much easier. However, avoid killing the boss of each wave, as he won't trop the Gold unless he's outside the Gate... and you need the Gold.

Once firetowers give way to Death Towers, don't get complacent... spend every penny, you need to. Now, however, your heroes are pretty useless at damaging the enemy. Especially Kael, at Lady Visaj can at least slow the boss down.Have Kael destroy the Box at A to get an Orb of Slow. Now keep repeating the above till you win or lose!

There's three waves you should watch out for.

1. Gyrocopters come at around Wave 7. They're flying and fast, your Boulder Towers can't attack them. That's why you should not get any Boulder Towers. If you're not careful, and say, get an equal mix of both, the Gyrocopters can take your portal down by 50%!

2. Siege Engines at around wave 15, they have fortified armor, when you have no Chaos Damage towers. You want to take them down with Flametrike while they're still behind the gates.

3. Frost Revenants at around Wave 22. These guys have 69 armor! Only your Death Towers can do significant damage to these guys. Make sure you have a good amount of them by now.

4. Thunder Lizards at wave 29. There's really not much you can do about these, I recommend having at least 40% life at this point if you wish to beat the mission.

With these tough waves, make sure your heroes are by the enemy gate already, so that they can deal some serious damage to the units before they come out.

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