That said, we are kind of forced into taking the minimum of troops and spending the rest of the points on other models just to try and hold out own on the table. Right away you have to figure that your opponent is going to try and strike your troops to gain the win, so we have to use this knowledge to our advantage.
Ways to keep them alive longer? Cover of course! I’ve long talked about forgetting you even have a WBB roll and that it should only be though of as a last layer of defense to help keep your group up. Keep those warriors in cover so when you get hit by plasma you at least have the 4+ before going to the WBB roll next turn.
Face it, warriors only have punch at 12” and then in mass of 2+ groups to really do anything. Why even have them on the table for the first few turns where they can be shot at? Reserve them as standard and have them walk on the table, go into cover, and hold objectives on your side. Contest the other with your scarabs and destroyers, or VOD/ destroyer lord as another layer.
If you know your opponent is going to be going for the warriors to cripple you, make sure that you line up your C’Tan and immortal block in such away that they have to go through them first- often not making it to your warriors at all…