Entry and Rally on a map. What does it mean?

[Adrian]

I can see on a map (in the "Map Editor") something like AtreidesEntry2, AtreidesRally2. Type: waypoint.

May I ask, what does it mean? And how it works?

[abcdefg30]

They are waypoints used in the map script. You'll see the script using AtreidesEntry2.Location etc.

[Adrian]

Would you like to explain, what is difference between Entry and Rally?
Are they independent actions?

Upd.
I found something else:
AtreidesWaypoint.

[Sleipnir]

The names don't have any special meaning, they are just labels that make it easier to understand the map scripts.