Ok well this game is very one-sided but if you want to see how to play this map watch 115 and Depression. 115 goes sea first and depression goes veh-air. Depression takes over the other 2 free big islands while 115 expands well getting tons of underwater metal patches.
Vaxon and Paranoia I am sure are just unfamiliar with this map as they say in the game. Vaxon does well porcing up a bit while paranoia is simply overrun. It's happens especially on maps you do not play that much.
But the real value here is watching 115 and depression. Neither make any glarring mistakes (one is 115 builds a tidal on top of a metal patch at the beginning....b0iler:P) but those are just minor. Not being pressured that much, they both just expand...
Depressions UC is a bit odd while taking out hlt's he kinda holds his pels back so they do not get wasted but he coulda sent a few in just to scout or have a lab make skeets (at this point he had soooo much metal it was insane; I think he even had 3 adv bot labs o_0). Anyway I know why he held his pels back but just seemed awkward...he sits with tons of units just getting smoked and not moving that much. Soon 115 kills paranoia and the game is quickly downhill.
Anyway if you don't know what to do on this map give it a look and see 2 good strats.