Luck issue or skill issue?
Yesterday I played my first ever game with genestealers. I had played tyranids for about 8 months now so I have some experience. My friend plays marines and quite a good player so I knew that it would be a hard battle. Played for a 1000 points and used the final day detachment. He got some good hits into my rockgrinder and left it with 1 wound left but that meant, that he left his storm speeder thunderstrike out in the open. My plan was pretty much to kill his storm speeder with my rockgrinder before it dies next turn. I had some neophytes in range also and advenced my parasite of mortex within 6 of him for the buff. I also had sustained hits 1 fror the neophytes from enhancement. The neophytes had a mining laser seismic cannon and grenade launcher. They shot everything into the speeder and only hot three damage in with the grenade. I kept a cp for reroll for the rockgrinders mining laser, used it to make one shot into two then missed both. After all that I was a little upset. My friend said that it wasn't so surprising that I did nothing into him because my antitank hits on 4+ but I still kinda feel robbed. Even if I wouldn't kill the thing at least I could have put it into bracketed. Am I delusional?