If you go all out in one phase (all melee for example) you lose out in another phase (in this case: shooting). If you decide to go all out for psi, you also dominate other phases as the buffs are so significant that not stopping them (which certain armies have a hard time) equals a huge disadvantage in another phase too.
Warhammer Fantasy has distinc possibilities for armies that are not dominating the magic phase to not totally fall apart.
Every unit is scoring. Yes, even a Landraider.I still haven't seen anything that says that vehicles score yet. Everyone seems to think that Troop Wave Serpents == scoring when there hasn't been clarification on what actually counts as scoring.
Every unit you buy from troops allowance has secure objective. Yes even a Landraider you buy for your DA Belial Terminators has secure objective.