Thanas that sounds like a good game.
Spyder and I played two games last night which we won due to, I think anyway, better communication and planning. The first game was on Scorched Haven. I was Terran and he was Protoss. Our opposition was the same. I scouted the terran player and discovered he hadn't walled off his ramp. I withdrew my SCV, then doubled it back to build a barracks where his natural expansion would be. I quickly told Spyder to form up together and we'd blitz his base with some marines and zealots. I had maybe half a dozen, while Spyder had 4 or 5. Meanwhile the barracks I built had tech labbed up and was building reapers. When I had three done and our marine/zealot combined force was at the ramp, Spyder signaled to go and we went in. Terran had only a handful of marines defending his base so they were quickly dispatched. The reapers came in from behind and took out his scvs.
Protoss though had walled off his base, but hadn't protected his mineral line, so the reapers took them out quite quickly. But the funny thing is, both players had actually made fast expansions rather than concentrate on building forces right off the bat. This only prolonged the inevitable however, but it was a weird little 'wtf' moment because I was wondering 'why haven't we won/they gg'ed'.
Our next game was even better. I can't remember the name of the map, I think it may have been War Zone, it's a 2v2 map which has three largish ramps at each end of the map where you spawn, and two of them are blocked by crap. Anyway, again we were protoss and terran and so were they. This game was long, it lasted 37 mins, and it was won purely because we controlled the map. We were also lucky as well. Spyder went zealots and stalkers, I went marines and marauders. But we didn't rush them or anything, because these guys smartly walled off their ramp. One thing I made sure to do, and I am pretty surprised nobody does this that often in the replays that I've watched, but I always make a point of doing it: that is, I erect a series of sensor towers to give us early warning. I remembered to save the replay and I watched it afterwards, and it's clear that simply having sensor towers can deter aggression from some players. They had a force that approached one of our blocked off ramps, obviously they were going to try and destroy the crap and sneak in through a back door. Except just as they were about to move in one of my sensor towers came online and it must have spooked them. (we saw them straight away at the edge of the radar coverage) But I am surprised few people use these things, I've seen it only once in a pro-league replay.
Anyway, we combined our forces once again and made a push to control the centre of the map. The map has three natural expansions you have to share with your team mate, plus four gold expansions in a 'N, E, S, W' cross position in the map. By controlling the centre of the map, you not only control those gold expansions but you deny them to the opposition. His Stalkers and Zealots and my Marines and Marauders took on their Stalkers and Marines and prevailed. What followed was a kind of back-and-forth reversal as they pushed back, and our army was destroyed. This is the part where we were lucky, because although we lost our army we had halved their force as well, but it would have been enough if they had pushed into our base. But they went shy, giving us crucial time to rebuild. Spyder built a Mothership which just ruin everyone's shit, while I built Thors, MMM, and even Vikings. By cloaking our army they could not do anything. Unfortunately that mothership went down, but Spyder built another one and had half a dozen carriers as well, while I had 5 Thors and a bunch of marauders left over. By this point we had regained the centre of the map and had taken down one of their gold expansions. By the time they pushed again, Spyder's new mothership had arrived and I had gotten half a dozen siege tanks and was shelling terran's base. When they counter pushed, they took down Spyder's mothership but we had completely obliterated their forces, were rallied just outside a ramp into their base, and had suffered few casualties. They gg'ed soon after that. When I watched the replay it was clear they had no more minerals left.
I played the same map with a friend of mine but against two very hard AI. Both my friend and I were pissed off at the AI because we've played together quite often and we've found hard AI to be a push over. But when we went to very hard on Friday night, it kicked our asses several times. Yesterday afternoon, we decided we weren't going to take the computer's shit any longer. I was terran and he plays zerg. Turtling was my responsibility but he had a mobile force of roaches and hydras to reinforce our ramp. The AI was zerg and protoss, and when they pushed we had bunkers, siege tanks and roaches and hydras ready for them. What was frightening before was the AI building a huge number of units and completely smashing through our fortifications. That didn't happen this time because we were smarter in our defence. (i.e. I was the one who built fortifications but his mobile force is what really helps because it can kite the AI as well as outflank them while they're busy worrying about my siege tanks) After the AI pushed and wiped out my siege tanks (but were wiped out themselves), my mate did a counter push while I hastily rebuilt. This force was sacrificed but it did enough damage to stall the AI from another push. During this time we both expanded, he took one of the natural expansions as well as a gold expansion, I took both the remaining naturals. His gold expansion was protected by what must have been over a dozen spine crawlers. I was a bit slow in reinforcing him and when the AI pushed again, they took out a lot of crawlers but couldn't take the expansion out. I built an army of siege tanks and had them siege up behind an alcove where a xel'naga tower was, and good lord was this an excellent position for tanks. Another AI push was massacred simply because they got shot at by my tanks, and when they came in to attack his spine crawlers and hydra/roach army finished them off. I was also building a fleet of battlecruisers. We then went on the offensive.
Man I love battlecruisers and siege tanks.

The AI's base was wiped out in like two minutes.
