Hello, and this is my first guide. Some people seem to be having trouble with missions 4 and 6, so played then and found some ways to beat them.
Mission 4 First, build bank, then forge. Set forge to salvage. Don't worry about the 3 scouts he sends, the base will destroy them. Make a generator ASAP. After a while, the enemy will send a group of marines/scouts. Start making scouts with rally point, and after a while they will die and you will have a group of about 20. Stop making scouts, and make an armory, on to energy. From now on, it's easy and you can attack. Send your group to attack, and make more scouts with rally point off. Just sit back and watch as you destroy him. This mission is quite easy.
Mission 6 Build bank, then outpost. Make a tank from the outpost to clear out some marines that will destroy your partner's scouts. After your scouts/tank are destroyed, put on rally point and make tanks. When you can, make 2 armories and set to reinforcements- now you gain supplies while making tanks. After a while, the attack wave is destroyed, this mission becomes extremely easy. Upgrade to barracks, and send your tanks to attack. Rally point about 10 groditz, and then send them out. You can also deploy a mod phantom if you want, because it's communist, I think, and you get the purple stuff from killing. From this point on, turn off rally point and just watch as your groditz, tanks, partner's phantoms/sakatas own everything. This mission is a quite a bit harder than mission 4, but mission 5 is still harder than this.
I'm still not quite sure of a way to easily beat mission 5, but hope these 2 guides help! Thanks for reading.
I want the strategy for Mission 5, because it's harder than other missions. I tried to build Special Ops early or Special Ops late, and they did not work
First, build a bank, then wait and build an Outpost. Deploy Maines in the front of the base for defense. (from now on, keep building Maines for defense and keep using Recruit when you are out of men) You should keep building Maines Wait for upgrade of Bank. After upgrade of Bank, build Special Operations. Depend on the situation, either launch a Missile or build a Generator. However, you will build a Generator anyways. Then upgrade the Generator. (you may need to do it later because you may need to launch a missile) Use your Special Operations, destroy the concentrated forces, then you will find your forces advancing toward the enemy's base. Use your Outpost to build more Maines to attack.
Thanks to dp6669 for the comment. I'll be testing SandaimeSpaceMan's method, and will confirm if it works or not, as well trying to find another, possibly easier way.
You can win Mission 5 without building Special Operations.
This is how I did it: Level 4-6 1. Build Bank 2. Build outpost 3. If the enemy sends scouts send marines then research manpower 4. Build Armory 1 Research money 5. Build Level 2 Outpopst 6. Build Armory 2 Research Manpower 7. Switch Armory 1 to Manpower 8. Make 10 Grodetz send them out 9. Turn of rally point keep making Grodetz 10. WIN!
I'm not sure if this is the best way, but I just beat mission 5 (shakily). First, made bank, then 2 armories on people. By now, the enemy will be attacking your base. Build an outpost, and then made either marines or tanks depending on the situation. The enemy either sends hordes of scouts/marines, or both- tanks for marines and marines for scouts. You will NEVER run out of supplies like this, so just keep making units. Eventually the attack wave will end, and I just kept making tanks until after a long time we won, between my tanks and AI's sakatas and phantoms
After you have enough cash and energy for building 2nd outpost, switch them to manpower.
Keep bumping tanks and marines depending on the situation. Rally an extreme mass of them (about 12~20 tanks), then start 1 outpost tank one outpost marine, disable rally, charge back and win.