T4 v. T3

AMS94

Are there any major differences between Tier 4 & Tier 3 wars except increased attack, health & season points ???
Any nodes or something else to be kept in mind ???
Bcoz the map seems quite similar to me
I haven't been able to find out any new nodes....just some stat boost

DNA3000

War maps are broken up into tiers. If I recall correctly, Tier 1 and 2 run the expert map, tiers 3-5 run the challenger map, tiers 6-9 run the hard map, tiers 10-12 run the intermediate map, tiers 13-15 run the normal map, and tiers 16+ run the easy map. Expert and challenger also see mechanics like tactics. So there won't be a difference in the map or war mechanics between tier 4 and 3. There will be between 3 and 2.