Wait, is this about a cover song? Just record it how you hear it in the original.
For exemple if I'will make a cover song of In Flames - Only for the weak, how many should I record?
The answer to pretty much every one of your questions is "Try it and see if it works". It's really that simple. This isn't Pain-by-numbers. There is no definitive answer to any of your questions.
I don't expect, that you say, I must have 4 guitar track, and panning is always 100% left n right. But I expect, that you share your experience with me, what works for you.
The international motto of the home studio musician should be "Just try it". If you here thinking so, than for what is this site?
For exemple if I'will make a cover song of In Flames - Only for the weak, how many should I record?
In guitarpro file is 3 tracks for guitars, but the Pan is in the center, I think this is wrong, or? The rythm guitar are in 100% left, and the 2nd 100% right, or maybe 95-95.
But both rythm guitar has a solos, and it's will sound bad, if the pan are 100% left or right. I mean, in the left speaker will be only the solo, and in the right speaker only the rythm.
In the original song, you can hear both guitar, solo and rythm to, in both speaker in the same time.
Can help me someone? (if you understand what i mean )
I just listened to your example; you need to record about 8 guitar tracks. You have to figure out what they are and where to put them, but I can definitely hear 8 guits, not including the bass.
Now... go get em.
how many should I record?
Alternatively you can run through the center of town naked with a chicken on your head.