As you progress through the campaign you are presented with progressively better units, and although there are enough of them, I would not describe the selection as numerous. The key to success of course is to control the spice, utilize its value and create enough units to obliterate the enemy. But the designers didn't make it so easy. First of all, you can only build structures on finite real estate--plateaus. You can only construct buildings on raised land, making strategic placement and unit placement for defense and timely counterattacks an important matter. Since there are only two or three entry and exit points for these areas, attacking an enemy base requires a methodical and calculating attempt at invasion. To spice up the situation, the desert battlefields of Arrakis are swarming with spiceworms--huge, fearsome creatures that plunge in and out of the sand with a possible mouthful of your units, if you are not careful about just leaving them lying around in the flat desert.

Unless you want your infantry frolicking across the map in mid-air, it's also a good idea to keep an eye out for tornados, which sweep up troops and kindly deliver them to their impending deaths. Combat is definitely intense, as you must quickly build appropriate units to attack and subvert enemy forces. For example, playing as Artreides (the good guys, of course) I discovered that sending infantry out to meet Harkonnen forces was usually a poor proposition, as enemy armor and buzzsaws made mincemeat out of them. Harkonnen catapults smashed fixed defenses and heavy assault vehicles left my light vehicles reeling. Therefore, it was necessary to buid some mobile artillery mechs to blast away at the enemy's massive vehicles--especially the fantastic Devastator mech-- from a distance to avoid their wrath while sending in more versatile mechs to pick off catapult and missile batteries. Also, rushing the enemy after building a decent sized force usually fails, because of the restrictive entry path of enemy bases, the presence of sandworms and enemy units you'll encounter along your arduous journey. Nevertheless, it is usually plausible to build up extremely massive amounts of units against the computer AI around your base, since you can use them to thwart enemy attacks and then finally launch one huge all-out assault on the enemy base with all your forces. This sounds like a somewhat idiotic and crude tactic, but since I'm pretty sure I'm not idiotic (just don't bring up my math grades, alright?...), I have no problem saying that this does not detract from the game experience, though obviously it doesn't add any bonus points. Since you're so preoccupied with constant masses of enemy legions hounding your base, nothing is mundane on the battlefield.