I do have to say probably the coolest thing in Warhammer 40k in my opinion has to be Dreadnoughts. They are the warriors that just couldn't be killed or were to important to let die. Dreadnoughts are epic in every aspect and would be an awesome addition that would make the game more challenging and a lot more fun as well. The counterparts of them would also be really fun like the Chaos Dreadnought or the Killa Kans from the Orks. These would be so much fun to play and also reinforce my reasoning for adding Tech Marines seeing as they would be the only ones able to heal them. Dreadnoughts have an amazing arsenal of weapons and skills. Also they are a really cool part of Warhammer that shouldn't go unnoticed in this awesome game! Dreadnoughts are definite a must in my honest opinion! Thanks yall!!!