I used to play this game since 2007, it was so fun to play with friends and even family, I remember when x-1 maps were invaded by in then Full Elite Goliaths and Vengeances (you only needed 8 iris and 31 LF3 to be FE) and a lot of phoenix, bigboys, yamatos, and defcons had to defend the map against the invasors, it was also fun to dominate the 4-x maps with 100+ players in the same portal waiting for somebody to come in.
After some updates, they just ruined the game (BigPoint), every update it was easier to get basic elite equipment and that demotivated players to keep them playing this game, also, a lot of bugs, hacks, bots, the game became easier and easier, I remember when you needed like 6 FE Goliaths to kill a Cubikon and now you can even kill it by yourself with a Phoenix.
Now, most servers have so few users, and most of them are bots, this game has died a long time ago.