Make T6 harder

​Although I was excited about the arrival of T6 I was disappointed when I played it.

 T6 is barely more difficult than T5!

 And far too many games we even have terminus and too few extremis!

 At least in T6 we should have :

 - 100% appearance of the 3 extremis.

 - Increased the speed of appearance of extremis.

 - 100% appearance of 1 terminus.

 - 50% appearance of a 2nd terminus.

 - More waves, increase the frequency?

 - Do not have an empty zone of moobs.

 - Bigger packs of mobs.

- The comeback of cohesion system.