Well, Eagle of Fire was right, the game is good if you pretend it has nothing to do with UFO: Enemy Unknown. It is a bit stupid though, to be honest youd expect Marsec or Megapol to deal with the alien threat, seeing as they have more weapons and money and probably have better and more scientists. Also stupid as how your supposed to be a secret organisation, yet after start up if you buy lots of stuff like me you get the funny sight of having a flotilla of auto-trans going right to the base (but never coming out again

)
"Hmm lots of auto-trans going into a slum, must be another secret base getting set up"
Fun tactics are using lots, i mean lots of hoverbikes.
Also, im not too sure why the game even bothered implementing ground vehicles, all they do are die, quickly, generally to the road being destroyed underneath them more then anything else.
Also, Valks are only useful against the first two UFO types you get, I only use the Valk really to stop the scouts from deploying troops right at the start.
First thing you do in the game, put your scientists into research. Equip all your soldiers with guns more related to thier attributes, then use your Wolfhound to raid your nearest Cult of Sirius building. Oh and dont forget to sell your Stormdog, its completly useless and money better used for better equipment.
One thing I found out the hard way, is that you need a vehicle with a cargo bay to get equipment from tactical zones, not much good sending in two pheonix's when neither of em had a cargo hold. Only way to get loot when using a vehicle with no cargo hold or if its just soldiers and no vehicles (talk about desperate) then you have to manually pick up items, big movement loss for soldiers which isnt good mid-battle (except for androids which you should weigh down just to slow em so they dont go to fast then the rest of the squad).
A good tactic when raiding cult of sirius, you only need 8 people, two squads of 4. Generally at the start of the raid the cultists will be above ground and most mainly in one or two rooms. Hopefully the squads should start nearby each other, clear out the first room you see, then get one squad to be in prone position nearby the door, not to close though. This creates a really good killzone, then get your second squad to go through the other doors (usually two doors in one room) and clear out that room, then send both squads to clear out the final room (there are usually 4 rooms i think) First time i raided though my squad who were in prone just got rid of all the cultists.
Now I dont know if anyone else was stupid as me, after my first few raids I thought the gravlifts in the temples were just for show, mabye some weird ceremony of sorts, after spending around 10mins clearing out one temple on the top floor searching for the last damned cultists I found out that the gravlifts actually lead to a basesment (even more stupid as I already found they do that in other buildings when trying to find aliens) anyway, there may be some skulking round there, but they tend to be in the top floor first.
When they were in the basement though they were just in one corridor right in the corner, there were around 4 of em which is why they werent retreating like what normally happens, however a good ol android (Matilda :bleh: , big ugle face as well but dont tell her I said that) armed with an autocannon and HE ammo made short work of em, nice narrow space and all clumped togther, one of em was the rocket launcher one as well, luckily he didnt fire and i got a free launcher and ammo :Brain:
Oh, one thing that i do disagree with Eagle here, the rocket launcher does kick behind, kills aliens and cultists in seconds (well early aliens anyway), however I found out on the recieving end, one of those damned cultists fired two rockets at Robbie (Robbie the Robot

my favourite android) and managed to finally fell him.
Now, I used to use a lil cheatish trick on Apoc when I first played it, whenver aliens attacked or I saw an organisation which had any level of infiltration I then saved the game and sent hoverbikes with a single agent or a pehonix with 4 to every base the infiltrated organisation owns and see which one has the aliens in em, (sometimes trying to complete the mission with lone/team of agents sent if it it was the first base checked) means you dont lose rep if it was the wrong base, however it is a bit of a low tactic.
Now a fun thing to do is raid some of the major corps early on, one favourite of mine is Marsec, they have really really nice equipment, not good to war with megapol, thier fleet of cop cars can kick behind. And if you attack thier bases they send SkyHawks after you.