just got the game today and played through the first 3 levels.
some thoughts:
while it's pretty cool that the marines, scorpions, warthogs and hornets are playable, the other units like the flamethrowers and cobra somehow scream STARCRAFT!!!! to me
hero units are pretty much invincible, esp Sarge Forge and the Spartans, if any of them dies, just bring some friendlies next to them and they'll be revived. pretty nifty though if Forge dies in his warthog, he gets resurrected as an ODST, i think, equipped with a shotgun instead of the usual assault rifle.
spartans in mission mode come in various armaments, from chain guns, missile launchers, spartan lasers, sniper rifles and they got indiv names to boot! they still retain their shields and can jack vehicles.
it's pretty weird how the game mentions that on a 1 on 1 basis, the UNSC units are stronger than the Covenant. if that's the case, why in blazing h*ll was the UNSC fighting a losing battle?
mac guns are fun to use though costly and kinda limited in ammo, much like an ion cannon blast from C&C, but the splash damage is horribly pathetic... it pretty much only destroys the point where u aim it at.
as for the multiplayer parts, i've played the skirmish with all 6 leaders.
UNSC has Capt Cutter, Sarge Forge and Dr Anders for leaders. UNSC has like uber units which are super versions of the usual unit and an unique unit and bombing ability.
Cutter has access to ODSTs which are super marines armed with shotguns, the Mac Gun and the Elephant which is a mobile barracks of sorts. quite nice that they included the elephant that was available in one of the multiplayer maps in Halo 3.
Forge has Grizzlies which are super scorpions, carpet bombing and the Cyclops. Cyclops is basically a building killer and can heal buildings and vehicles. unique ability is to grab something to use to pummel the enemy with (those stone giants in Warcraft 3 anyone?). quite a useless melee unit, imho whose only redeeming feature is the healing ability once it's researched.
Anders has Hawks which are super Hornets armed with laser guns, a cryo blast (sooo RA3) and a Gremlin which is like an EMP blasting vehicle that is only useful against vehicles and useless against pretty much anything else.
Covenant has the Prophet of Regret, the Arbiter and the Brute Chieftain. diff from UNSC is that these leaders actually appear as playable units each with unique abilities. These abilities can be activated at will, but costs $$ to maintain it. The Scarab is also available at 20 units and is basically pretty much invincible once built, most units and buildings are dead within 1 shot...
Regret has access to Elite Honour Guards armed with the plasma swords and a cleansing ability which is like a directable ion cannon which gains additional damage over time when fully researched. Honour guards can be equipped with cloaking abilities for sneaky kills. Regret starts out with plasma rifles and when fully upgraded, has fuel rod cannons, can fly and has 2 remote protectors.
Arbiter has access to Suicide Grunts which are the typical grunt squad minus the Elite and has the special ability to... commit suicide by running into enemies with plasma grenades on hand. Arbiter's kinda cool with 2 plasma swords and his special ability is kinda fun to play with, he goes into some sort of rage mode and the player can move him around with the left thumbstick and use the right thumbstick to attack. He regains health with each kill in this mode. A permanent cloak upgrade can be purchased.
Brute Chieftain has the Brute Choppers replacing the Ghosts and access to a Brute squad which consists of 2 Brutes armed with Brute shots and upgradable jump packs. Kinda resembles Tartarus from Halo 2. Hammer resembles the ones used by Brute Chieftains in Halo 3. Special ability is a vortex which sucks in enemies and can be controlled by the player. it's ended by pressing the A button which causes a large explosion whose damage is kind of dependent on the amount of debris sucked into it. The hammer also retains it's deadliness in that it pretty much kills infantry out right when fully upgraded with an added stun, AOE attack, instant KO to stunned units and the ability to pull in units towards the Chieftain.
