I believe the alien team lacks an ingame means of communication and orientation. Even when the alien commander is supposed to be a gardener with little direct interaction with individual lifeforms, I think the social aspect of the game requires a certain amount of it. Also, there's some concerns mentioned in another thread about maps being difficult to navigate for new players and that's a problem where there's an emergency.
I propose a new feature that I believe is useful and flavorful, a new ability called â€œplace pheromone trailâ€
This new ability would place a marker on the map centered on the structure that activated the ability; the obvious candidates for this are drifters and/or cysts. This marker would be both visible in hive sight from a long distance (ideally the whole map) and place a trail for each alien in range much like the waypoint trail for marines that increase in strength the closer the lifeform is to the marker.
This marker would last for a couple minutes at most or until you use it on another structure. Potentially there could be a researchable upgrade that could make the trail stronger, like giving a minor bonus to aliens who reach the marker's vicinity.
The pheromone trail would be used to coordinate attacks and call for defense of particular spots. There may be concerns that is too similar to the marine side, but instead of directing individual marines this functions like a general call for the alien immune system (I mean the lifeforms) to concentrate in a particular spot, which sounds to me like the kind of things that fit the alien commander style. Also, it doesn't look like the kind of things that would see much use in competitive games, but it should be a welcome addition to pub or casual games.