Mixed emotions with this game.
If you take the game by and of itself, it's a pretty solid game, with all the standard elements you've come to expect of MechWarrior. But the Black Knight sequel assumes events that definitely took place.
But first, the setup. You are a former Dresari lance leader, dishonorably discharged, and cast out in disgrace. You get hired on by the Black Knights, an infamous mercenary company with semi-military leanings.
You start out the game on a planet that makes the moon look like the garden of eden. It's stark. It's lifeless. And if you play these missions at night, you will be blundering around in the dark.
However, you soon find yourself in familiar territory - Kentares IV. The Black Knights have been hired (or so it seems) to help out. But the Knights are betrayed and your character decides to help out the resistance.
And here is where I don't like Black Knight. It assumes a course of events at the end of Vengeance.
In the next to last mission, you had to make a choice. You could either rescue your character's sister Joanna, in mortal danger, or you could raid a warehouse for mechs and munitions. If you decided to raid the warehouse, you would earn yourself the mechs and the munitions - but you will also earn yourself a dead sister and the wrath of your now former chief technician, who will leave you.
Now, call me soft, but at this juncture I always play the Save Sister mission. Because I actually have a sister, and while I might hate her sometimes, I wouldn't want her to die, either. So the main problem I have with Black Knight is that it kind of plays fast and loose with events in the game.
However, the game itself is fine - noticeably more difficult than Vengeance, but still fine. Also, the game flows depending on what missions you play first, lending it a definite sense of realism.
So my opinion of this game is mixed - a solid game, to be sure - but the setup leaves a lot to be desired.