There was some questions about counters. Basically it goes:
LRF > LF > Carriers (fighters) > LRF again. Thats the basic triangle.
Its pretty obvious that LRFs (Long Range Frigates: Javelis LRMs, Illums, Assailants) are good against LFs (Light Frigates: Cobalts, Disciples, Skirmishers), and that LF are good against Carrriers, etc.. The following is a more complex expansion:
> LRF
> Flak > (fighters) > Scouts
Scouts > LRF > LF > Carriers |
> Support v
(bombers) > HC's
> Structures (& SBs)
> Cap Ships
LFs are good against Flak, Carriers and all of the higher tech Support (repair/disable) ships. Carrier fighters are good against bombers, as well as LRF and Scouts. Carrier bombers excel at HC (Heavy Cruisers), planet Structures and Capital ships.
Here are the old links: Colored Damage Chart
Zyrxil's Damage Types
Also see change logs, since links are outdated.
Edit: added arrows to clarify multiple counters from a single ship.
Updated Diplomacy Damage Types