for those who love cod and they are pro player i suggest this mission..this mission is
one of the best i have made untill now..

for the heli mod:
you will need ggmm:gta garage mod manager.you can just get it from here in search.
then after you download it visit

http://www.gtanetwork.it/zone/pafiledb.php?action=file&id=4247

and there you go