i enjoy toying with other empires diplomatically, i find the cardassians are particularly good for this.
i once extracted 500,000 credits from the ferengi just to declare war on the klingons, because my military strength would swing the balance either way the klingons were eager to sue for peace too. The ferengi subsequently went on the offensive and offered me an affialiation treaty to boot, which i accepted. I built starbases between the ferengi/klingon battlegrounds and placed a large portion of my fleet there (about 36 destroyer II`s, 45 War ship III`s, 27 Battleship III`s (Bmod game). Starting hitting ferengi with intel, this raised klingon opinion, ferengi declared war, klingons offered affialiation. Brought reinforcements through handy dandy wormhole from the romulan border, Wiped out ferengi who were mostly in Klingon space, mopped up, then attacked severly weakened klingon empire. This constant chain of victories even raised the morale of the conquered worlds to loyal!!!.. Needless to say romulans went down very very quickly afterwords, galaxy was turned a nice shade of purple
another favourite is just putting massive fleet on an enemies border, you can get some seriously good multiplayer laughs
"i dont like those ships on my border"
"im just putting them where i can keep an eye on them"
"but there in striking distance, you said we were friends"
"we ARE friends, there just training there"
"but bajor doesnt have a ship academy"
"....... erm"
this sort of general behaviour, using intel to weaken any united front is just so evil
