Is it really? I did not know that. And yeah, Valkyria Chronicles is great; although I'm stuck on one mission, maybe someone can help me out.
it's the one where you have to stop the moving car from escaping with that... princess... girl...?
and @MW2 talk: I swear I think I got nuked 4 times? Although, I probably don't listen hard enough to hear the swears, or I'm in a party. I tend to play MW2 with other people, and if not, I'm just pounding loud music instead of plugging in my mic.
Well, rank is based on the number of turns you take to finish a mission...doesn't account for anything else. You could have all your troops knocked out and kill no enemies, but as long as you capture the main flag in about 1-2 turns (maybe more), it's an easy S/A rank.
About that mission:
-It's better if you get shocktroopers to elite first.
-Put shocktroopers in the middle of the map, it should be about 2 or 3 of them there.
-Use the tank to block the first 4-way intersection (use the headlights the armored car has as a guide)
The car will go to the next intersection, in the path of your shocktroopers. You could either:
-Spend CP to send your shocktroopers towards the car, a risky move since there are two enemy soldiers near where the car is, as well as the car's own gun. If you manage to get all your shocktroopers there, you can make a joint attack to disable the radiator in less turns.
-Wait until the car gets to the center, which is safer since you probably have to deal with the armored car's gun only, which (if I remember right) stops targeting you when you get to the back. Then either use demolition boost on a shocktrooper or a joint attack with all three. The problem is that if you don't disable it then, it's gonna have a greater chance to escape.
I actually tried the demo, and I enjoyed it. Unfortunately, I'm not very good at SRPGs, and can't seem to get through the demo level without getting someone knocked out. 
Still, I might just go out and rent this one.
Don't worry about it, I went for a no-kills run and I got a lot of my people knocked out. As long as you reach them in less than 3 turns, you're fine. In fact, some characters are unlocked when some are knocked out.
-Take your time and look at the tactical map to see where visible enemies may be.
-Aim for the head! Enemies take about 4 times the damage if you manage to hit them there. Use the D-Pad to fine-tune your aim.
-Level up classes to elite as soon as you can.
-Crouch near sandbags: you negate headshot damage on whoever is crouching. This works for enemies too, so take that in mind. Sandbags can be destroyed by explosives.
