Strategies
Sy spamming
Abstract
Single person makes 2 or 3 sy for the whole team spamming bc like no other...
Build
The person in the back position will start getting res mod right from start, followed by advanced res mod and cap fac on MS. You should get 8 cols each on each of the patches, while CC gets hyper mod sometime after the advanced res mod is done.
When cap fac is done, just start bc research and when hyper mod is done, keep sy improved manufacture in queue. Then get SY on your CC and do nothing else on CC.
When sy has arrived, you will instantly give that to other team mate. The other team mate will instantly get cap fac on that, while the sy person starts getting his next sy.
When the cap fac is done, return the sy to the main SY person, the main SY person better NOT pump the next sy before the sy is returned or it is all screwed. Once returned, just give it back to that person again and let him start making BC. Soon after your SY is out and you will start making cap fac and build bc. If it is 3v3, you will once again do the same to other person making it triple SY bc spamming which is just too strong...
Execution
When bc's are out, do your worst...
Note
The team mates better have enough ru incoming to sustain ms/cc/sy build or its gonna look pretty lame. And make sure to keep passing the BC that pops out to the main SY person to get the upgrade fast. But if you keep passing BC back and forth, it will recover health to be an exploit, so don't even do that.
Get a single cloak only on the multiple sy to save some cost, and make sure to keep sy on F2.
If this is done to 1 person, that person will save so much ru, this is not even funny... and it's one of the strongest strat to do... A person is saving advanced res mod (2250 ru), hyper mod (1000 ru), bc research (1800 ru), improved sy manufacture (1000 ru) and all the bc upgrade costs which would be a total of 7500 ru for level 2 hull and speed. Which in total will be 13550 ru to be saved for doing this than going individual bc build, which is just simply insane.
Don't build anything on CC, or even sell CC to get a quite fast level 2 hull bc. If you want to have a use of that CC, you will need to make 4 more cols to go max cols and start pumping things out from CC after you get enough upgrade and jump costs.
If the cap fac is killed on the sy that is not owned by the main SY person, he cannot start making bc even if he gets cap fac back up, so, in that case, blow that sy and recieve the main SY person's sy. The cost associated in going individual sy is rather expensive compared to just getting 1 more sy. So, better keep good eye on cap fac killers.
Prevention
There is honestly not much to prevent this once it is in effect, as there is only the consequence of getting overwhelmed by multiple bc jumping in like mad. So, either you do the same move not too late to them, or get good bomber raid to kill the cap facs or you will make some very fast strat to make them in trouble before much of their sy are pumping bc out.