units that gain experience get improve
hint: sorry for my English
itīs just that, when your units gain experience you will can improve and this one could be choosen from increase defense or attack abilities (anyway you have to pay for the upgrade)
for instance (itīs just a possibility)
when they gain experience I you can choose one of the next options
1) defense = increase a little bit the armor of the bunker they build
2) attack = give son granades that could be used automatic when they detect a better enemy infantry
and both of this can be limited by time (for instance 2min to reload)
when they gain experience II
you can choose one of them:
1)defense = impruve movements, allows to move faster and avoid (*some) vehicles to run over this units
2)attack = use c4 or proximity mines for creating traps or waylay
when they gain experience III
1)defense = the bunker they build protec from fire or tiberium liquid
2)attack = impruve the machine gun to rail guns (Could attack air units too *optional)
so thatīs all and all the units will have his impruvement level like thanks with better armor or weapons... i think you get the point.
Pros : Adds more strategy and better reward for killing enemies.
Cons : could be dificult to get balance the factions but if you do it properly could be great.
PS: Description part is just an example.
. Please share your ideas if you have. and