I appreciate your comments.
Personally, I don't like crispy new fighters but I don't like when they look as if they single-handedly fought the terrans, beat the lucifer and kept going for 50 years neither.
I will tone down the dirt. I've shown it because it's my first time texturing and I don't know if I'm doing it right.
Iin the end it's a matter of personal taste, and I like it less dirty.
Regarding that cracked pattern I had, I think it makes all that back area too continuous and hides the mesh details, so I removed it.
And thanks for recomending the Ulyses, I will be loking into that.