It has a map you can open using the "M" key - and once you build Comms Towers, you'll even get waypoint direction indicators on the HUD. :)
Does the map have your base on it or do you need the comms tower to mark your base
The map shows the base as yellow dots (getting bigger, the more you build there) and yourself as white one.
The comm tower adds a pointer to the base in the normal view.
