Starting with "Casual"
Casual is the easiest ... in Warhammer 40000: Dawn of War III. Called casual but this is not as easy as its name suggests. Even with this difficulty, the game has the ability to make you frown and pound the Restart Mission no less times. So, unless you understand gameplay mechanics and playing tactics, Casual is the hardest that you should consider first. If after the first few screens and feel so easy, adjusting the difficulty level is very easy before entering a new task.
It is also important to note that you will need to memorize the shortcuts to make Dawn of War III easier to control. The number of shortcuts is quite high, so in the first few tasks you should focus on getting used to using regular shortcuts. And do not skip to the tutorial because it is the "essentials" you need to understand the basic elements of gameplay.
Use resources reasonably
Do not constantly build and upgrade "teeth" is your army "invincible" to win all enemies. In fact, there is a rational balance between using and accumulating new resources that are more important in the game. Take note of this point as it will certainly help you a lot in the "hard fight" with opponents. Do not forget Dawn of War III is a tactical strategy game, not a "hack" type.
There are three main types of resources: Requisition, Power and Elite Point. Requisition is used to build soldiers, buy upgrades for vehicles and build bases. Power is needed for vehicle fabrication, upgrades for military personnel, and advanced facilities. Both of these resources are available when using the Resource Point and gaining more "productivity" when constructing the corresponding generator. Finally, Elite Point is used by the Elite Elite and activates its own skills, spawned after a certain time.
Do not waste Elite Point for battles. Without Elite Point, your troops will be very weak, so use fair only if necessary. If you get a good amount of Elite Point, consider using it for Super Ability, which will easily kill down enemy units in the blink of an eye.
Always watch the battle situation! If you detect an enemy approaching the Resource Point with only a small group of troops, send a force close to them. It is important to avoid pulling the entire troop from one place to another, to "get rid of", both time-consuming and giving the enemy the chance to attack you in another battlefield.
Build Listening Post! Whenever you acquire a Resource Point, you should build a Listening Post in that place, especially where intense combat is most likely to be seen by the enemy. Of course, the Listening Post does not help protect the Resource Point against the mighty legions of the enemy, but it is more "reactive" if the enemy is just a reconnaissance force. Not to mention, the Listening Post helps to give you some time to deal with the enemy's resource raid.
Build the Generator! Similarly, when you acquire a Resource Point, you should build the Generators here. In fact, they spend a lot of money, especially the initial moments of the game when the resources are still limited. However, these generators will increase the amount of resources you collect for building troops. Not to mention, predators possessing these resource points will have to destroy the Generator first, at least add a little more time to your soldiers to protect.
Know when to give up! If you are attacked by Resouce Point and you do not have enough troops to fight back, accept the war and do not try to fight them. Consider the benefits and balance of forces because later you can completely recapture. Meanwhile, if you fight with the enemy to protect the Resource Point can cause you to be defeated enemies lead to "Restart Mission." However, be careful to protect the point of resources created Elite Point. This is what you need to create generals and have as much opportunity to create the "Elite" company as large. If you let the enemy win, you give them the opportunity to call the elites and smash your troops.
Dynamic up! Do not wait at the base until you create a powerful army and then attack the enemy. Remember, while you're building troops, the enemy is the same. Also, staying in the base will make you "blind" on the whole screen, not knowing what is going on around and completely in the posture. Very adverse.
Battle and Long Range! Some units have the ability to switch between melee and ranged attacks, so keep this in mind as you advance into battle to make the most of your battles. Also, do not forget to keep an eye on what the enemy is building to "similar succession" to build the same troops fight back. Do not forget to take advantage of the bushes or Stealth Cover to "stealth" your enemies, as well as take advantage of the terrain. Be careful when using Heavy Cover, as it will increase your defense and defense