[RoninOni]

I could see some starship troopers-esque metoer bug alien attacks that happen a couple times a year, and lasts for 24-48 hours (3-8 in game days).

They'd happen on different continents at different times, if you think about the earth rotating under a meteor shower it makes sense as to why it'd be 1 continent at a time through the duration of the invasion... with spikes and lulls in the activity as well..

^THAT could be fun and an occasional and rare distraction from the greater war effort as all factions lock down on defensive mode... and maybe some armies exploit a faction being swarmed with an attack at the same time.... could be interesting.

I'm particularly reserved about NPC armies however...... Only use I could really see for it is Feint attacks where the real players are lining up for an attack somewhere else and the NPC's are used as Bait. Honestly though, I'm not particularly confident in this idea.