- - Your weapons combined damage must not exceed the enemys shield capacity. If you do not plan to destroy them, eventually.
- Fast shooting weapons are preferable for quicker gains on Weapons skill. A fast shooting enemy will also yield quicker ratings for Piloting, Engines and Shields.
- There must of course have not been any warnings that your enemy tries to dodge away with their FTL.
- The enemy have already tried to board you.
- All of the enemies missiles have been used up.
In general the AI is remarkably predictable and generic in its strategies. It will throw everything at you at the start until it completely drains itself of finite resources and then proceeds to sit idle and auto attack with what little weaponry is left to attack it. No more teleport. No FTL, unless you've been warned.
I find this strategy totally legal within the idea of a rouge game, as you try to overcome the impossible odds and edge out any advantage with some clever abuse of the mechanics. Afterall it's the same mechanics that try their best to make you lose in the most humiliating and unimaginable of ways.