Fatigue seems quite harsh, in that it starts happening very quickly. A character might have 4 CAs per round (including bonus shield parry) and 12 CON, which means that after 15 seconds of fighting they have to make an Athletics Test or start getting tired. 15 seconds doesn't seem very long to me, and doesn't take into account what armour they are wearing, unless I decide that lightly armoured fighting counts as Medium Activity.
Another problem is, I didn't point out the effect of Athletics skill on Fatigue during character creation, so some of the players might feel a bit cheated. That's my fault though.
Another problem is, I didn't point out the effect of Athletics skill on Fatigue during character creation, so some of the players might feel a bit cheated. That's my fault though.