The game needs to make it obvious to players that you can select your spawn point, and what kinds the spawn points are. Fixed, or Rally, I know It’s easy to figure out if you know you are selecting a rally point, but new players obviously have no clue they can even click on them!
The map and the squad selection need to be separate panels in the UI, the squad selection can overlay points making them inaccessible. At the very least the map should be moveable, with Left-click drag, or using WASD that way you can get to these spawns to click on them.
Another idea would be to have a list on the upper right side of the screen that lists all spawn points and the time until they are active if in between waves.