It's a perfectly good question. The Mi-8 is very difficult to use in combat. It is an easy target with limited range.
But this is also what makes it fun. You have to fly it in a completely different way. When fighting any serious threats, you have to rocket from a distance. If you get close, you're dead.
The Mi-8 is a great transport helo. It can carry a ton of troops - 30 according to wikipedia.
It shouldn't be used as a dedicated attack helicopter.