I got the game for the DS because it looked so cool and it is fun but the problem is that it is hard as heck. I am on Chapter 8 and I was playing 1 level for 2 & 1/2 hours before I gave up, any tips?

A lot of it is just hanging in there for the game. I usually "trench" when I play any kind of strategy game, by just making a bunch of heavy units, and slowly creep toward the enemy base.

Anti-Tanks are very nice to have around though (once you have them unlocked), and just tanks in general. And bikes are good to have to capture bases.

A game I'm good with, mission 8

First off load your two infantry into your t copters and move them north to capture the bases. Take the b copter up there and attack the infantry in sight and use the b copter as defense to gain control of the north. In the meantime, your hq area should build tanks as you slowly push to the east and capture with infantry. Have the north also produce tanks from time to time and try to pincer the enemy. Watch out for the enemy missiles to the south if you do take your b copter down there.

I know i am bugging you guys but how about mission 10? sorry.....

Your not bugging us, I'm good at the game and don't mind sharing my strategies.

Mission 10 is kind of difficult at first. What you want to do is try to rush to the center and get the airport and base there. Just hold the position and play defensively until you have a decently sized air force and ground force. Slowly use your air units to clear the way for your bike units to capture enemy territory while your tanks destroy all the anti air ordinance they build. Hopefully this will help you. If not, just tell me what went wrong and I'll playtest a different approach to it.