One of the best games I've played. Love playing it with friends. Few suggestions
1. SURVIVAL - A survival(or base building) mode where you can see how long you last against waves of enemies. Set up turrets and other defenses, order resupplies, set up defense, each person has a bosco with 1 ability (healer or defender)
2. Ultimate Mode - duo missions where you can assign any 2 weapons and any 2 equipments. But 4 mission objectives
3. Base color change - allow you to change the base color ( torches, clothes, guns of each class)
4. After level 100 add a third upgrade for each weapon/amor/perk
5. RESCUE MISSION - have a mission where you go save a minor and retrieve his satchel or gear.
6. Add new maps...Rival Tech City Biome/ inside a rival tech aircraft or ship