A Bortasqu' cruiser charges in, and just to the left or right at full impulse, until it gets within firing range and goes into a power slide. During the power slide you pop every tactical buff you have, and begin using the Subspace Snare on a foe, when the foe is caught and put in front of you, you activate the Disruptor Autocannon, destroying the foe.
the R'Zar Maneuver: fly around at incredible speed incredibly close, in circles, firing everything on autofire, make everyone dizzy, except yourself, and after the enemy is destroyed, get blown up in the explosion.
Park your starship in the middle of a Borg Unimatrix. Do not shoot the charged plasma bolts. Instead, pop emergency power to shields, aux to structural, brace for impact, and a healthy dose of Shepard's Prayer.
The pulse goes off; with any luck you live and the splash damage causes the unimatrix to vaporize itself.
Although, it's safer to simply use a photonic ship, unmanned shuttle/fightercraft, or anything else you can throw at it which will cause the thing to blow up first that isn't you.
The Deferi maneuver - Once the breen destroy the deferi patrol kill the breen. 0 deferi survivors and 0 breen survivors equal and are therefor balanced with the customs of the deferi people. The dead deferi probably wanted balance more then anything anyway.
Kirian Manuever: Charge Torp Spread 3 with Chronton torpedos, wait til charge is nearly expired, Evasive manuever straight at enemy, fire spread on enemy thru Enhanced Batlle cloak, charge Spread 2, Fire spread of Chronoton from aft launcher, recloak.
Repeat til opponent rage quits.
Kirian Manuever 2: Fire Torpedo, cloak, blame someone else.
"Why did you shoot me?"
"My Combat log says YOU did!"
"Romulans falsified your records to start us fighting. Go get them."
It would be something if you could use chroniton torps like krenim did