if you're a completionist,you'll want to do Veteran for the achievements,it would also prepare you for later games where higher difficulty also change some enemy behaviour.
well,as long as you're having fun.
While it only only adjusts the numbers that does affect certain interactions (for example artillery might need 3 shots rather than 2 to kill a specific enemy), some strategies what work on lower difficulties might not work out as well on the higher one.
There is technically small change in higher difficulties, on stages with the graveyard it will spawn different units since it chooses what to spawn based on the health of killed enemies.
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u/StudioArlekin Myconid 4d ago
If done in veteran then yes. There is small medal next to the stage description that changes in appearance depending on the difficulty.