Hint :
Hints

Creeper Tank - Atreides Only:
First build 5 Engineers and an APC, Pile the Engineers into the APC, park the APC infront of the opponent's base. Once it cloaks, creep it slowly an inch at a time, keeping it cloaked. Once the APC is deep enough without being seen, unload it and take over 5 buildings. Sell them, you'll get infantry and money.

Infantry Defence - Atreides Only:
Atreides have to be one of the strongest defenders, with the Machine Gun Tower and the Missile Turret. It is simple to defend with simple Infantry, First find the entrance. If possible find the main one. Build 10 Kindjal Units and 10 Snipers. Place 5 Kindjal and 5 Snipers on either side of the entrance. Deploy the Kindjal and bingo, you've got the kindjal to take out tanks and the snipers to take out infantry.

Infantry Offence - Atreides Only:
This works just like the Defence but it can involve other units. First off, you'll need 10 Kindjal, 10 Snipers and four APCs. Group the Snipers into one group and the Kindjal in another. Load them all into the APCs and find your way to the opponent's base entrance. If there is Infantry Rock near by; the APCs are not needed. First Unload the Kindjal and the Snipers, Line up the Kindjal and deploy them, line the snipers behind them, note this will take place at the end of the rock ramp (ON OPEN SAND) WORMS!!..Okay this is where the APCs come in handy, scatter them around the Map not to far by a fair distance from the infantry. Have them drive around in circles to attract worms, since they are tracked they should to nicely. Should work 98% of the time. a good waste of money if a worm gets hungry for infantry.) Now any thing coming out of the base should be paste.

Sniper Offence:
Atreides Only First off, build 6 snipers, If there are barrels around the builds of the base and such..that all you'll need. If not, add 6 Mongooses and and 8 Bikes to the list. That should do fair, add stronger units as the diff. goes up. This should work when there are two entrances, bring the snipers around rear, and start picking off Infantry{ Or barrels }. All their units should come after the snipers then fly the bikes into the middle of the base to take out defences and the units from behind. Then have the Mongooses paste the base.