Neccessity Of War Tech
Some people have suggested that in certain games, they might not build any units with, say swords, for example.
This led me to thinking that it would be interesting to start off wilth a small set of weapons like:
spear
axe
dagger/knife
bow
And then put research into the areas you want to unlock more advanced weapons along that line.
for instance putting research into spear could give you the opportunity to make stuff like:
pikes
halberd
throwing spears
or research into daggers could give you:
short sword
long sword
two-handed
each weapon should have its own unique characteristics to make researching worth it.
This could lead to more diverse faction warriors along the lines of the Aiel (from wheel of time) who refused to wield a sword but quite happily used spears and bows.
It could also be a distinguishing feature between the aggressive and peacful factions
I guess my main point is I wanto see more variety and options when it comes to tech, not just war tech but in general, it kinda annoyed me in Civ IV manual, they mention there are alternate prequisite techs for techs like "Flight", but the other techs you didn't use to get "flight" continue to appear in your face as an option to research even though there is no benefit to doing so.