Hello Bataav, thanks for posting… I’ll try to answer your questions as best as I can..
Unfortunately some missions in the arc can only be completed by destroying a structure… Also The Syndicate only has positive Faction standings with Angel Cartel and Serpentis… You could gain derived positive Faction standings by completing regular missions plus Storyline for them but that would take a long time and also mess up your other Faction standings…
Completing missions for Angel and Serpentis Cosmos Agents is a faster yet very limited way to gain derived positive Faction standings with The Syndicate… Again there’s the issue of messing up your other Faction standings to consider as well…
Those Cosmos Agents are located in Null Sec space.
There are also 5 Angel Cosmos Agents located in the High Sec Caldari (3 agents), Gallente (1 agent) and Minmatar (1 agent) Cosmos Constellations…
So besides completing the Gallente Level 4 Epic Arc for The Syndicate every 90 days, the only other way to gain positive Faction standings with The Syndicate is to complete regular missions plus Storyline…
According to my notes on standing hits from running the Gallente Level 4 Epic Arc, I incurred a total of 21 negative Faction standing hits towards ‘The Syndicate’ for ship kill ranging from -3.0% down to -0.0225%… Course that was years ago and I usually do full clears, I rarely ever blitz missions… I do know some players would use alts to destroy the rats / structures that gave standing hits so their mains wouldn’t incur them…
Also remember that despite getting negative standing hits, completing the arc will still give a big Faction standing increase with no derived standings to any other Factions… Plus using the Glamourex Booster will definitely boost the Faction standing increase..
Anyway, these were my negative standing hits:
6x standing hits for -3.0%
14x standing hits for -0.025%
1x standing hit for -0.0225%
That’s about it, I wish I could have been more helpful… May you have much success and good luck with your goal…
DMC
o7