Once upon a time, Advent used to be the most powerful race to play (which was later found out to be a bug in the illum frigates) but after nerf, after nerf, after nerf, I can honestly say Advent have become so unplayable in the multiplayer scene.
Having come back to sins, and playing advent, I see them as a race which needs urgent attention. TEC has cheap LRM's, Vas have the SB rush and Advent have the Dicple and Socut rush. see the difference?
Illums 3 Military Labs
Jarvis 2 Military Labs
Kanraks 1 Military Labs
Now as you can see, advent already suffer from having to build an extra two labs then the vasri which means more resources wasted before they have a chance to get LRMs to the battle, while losing that extra civic slot too.
I know that Carriers for Advent only need 2 Military Labs to create, but there are two easily countable and can only be used to support a fleet.
I know many people would say that Diciples and Scouts are a good option, but I still don't know why the developers have not sorted out the Scout issue, Scouts should be used to scout planets, not attack ships. I exploit this tactic with Advent sometimes, but it should not be an option to exploit.
Proposed Ideas to Advent:
Starbase Destroyer StarFish - Should have an option to either focus fire on one object or several objects.
Illumantor - How about reduce the illumantor to Lab 2 requisites, however you would need to research one beam technology before being able to build it. At least this would increase damage to illamantor, saving a civic slot too. move beam technology to tier 2. (BEEN BUFFED, NEEDS TESTING)
Guardian - Issue when put into groups with a fleet. Shield Ability doesn't work properly when switched on because it only lasts a few seconds or doesn't switch on at all. Only happens when put into fleet.
Advent Economy Buff - A new low tier research technology that would enhance crystal production, or tweak it so that advent upgrades for crystal are more effective then any other race. Too reliant on crystal.