Always remember, when you build your army, you have a plan of how it's played. Don't deviate from that because you will get stomped.
Although every one of my friend's bright lances were completely impotent.
My army relies on the alpha strike, meaning every unit is on the table and hopefully I can go first to wreck some things. This scenario was dawn of war and I decided to be a little weird and reserve everything (because i must be damaged) just to see what would happen. Outflanking pathfinders is retarded, deep striking suits means they can't get to cover before they are shot, and reserving the big guns means (obviously) they don't come in until turn 4.