Two ideas for chicken mods that still encourage map control/expansion.
Chicken extractor1. Mex produce/spawn a chicken once per second
2. Chickens have cannon fodder DPS and HP
3. Buy chicken upgrades for metal for HP/DPS/type of chicken
Chicken hunter1. Neutral passive chickens spawn randomly around map
2. Chickens run away / skirmish any player units
3. Chickens lay (drop) eggs every 10 seconds that turn into more chickens after 20 seconds
4. Every 5 minutes, 90% chickens go aggressive and attack similar to a wave in regular chickens
5. When this happen, 10% of chickens instead evolve into next tech level of chicken, which drops those eggs