I have 18 vypers all equiped just a little different. If I am going to fight nids I take a squadron of 3 that have the catapults upgraded to cannon, add in holo field/spirit stone they are about 100 points each. They hunt first any solitary creatures. with 18 str 6 shots most nid big guys are shredded. For SM I have a squadron of 3 with star cannons with holo field and spirit stones. These hunt any long range devastators first, then staying about 36 inches away, kill any marine with in line of sight. When playing as Saim Hann I also bring two other pair of vypers, 2 with missile launcher and 2 bright lance, and 3 with scatter laser. )Yes thats 10 vypers). On another note I have used Hobby Workshop to buy most of the models I have for my Saim Hann army. The bits take longer to arrive but the models and supplies arrive quickly. The prices are also better than from GW.