I assign you as an Ensign to BETA SQUADRON under Captain Khaldore
If you haven't already, I recommend you read through our Information Index as it contains information on all our Communication Channels as well as other important information (e.g., it explains how as a new or returning member, you must go through the Recruit rank for a month before you will have full access to fleet stores in-game).
You need to set your forum avatar to Ensign! You can set your forum avatar here, just select the Local gallery Category: Engineering (be sure you unselect Command Advisor). Then press the "Go" button to see the selection of 9 Engineering avatars. Choose the Ensign avatar (first one on the top left). After that press the "Submit" button and you are done.
In the next few minutes I will be sending you invites in-game to join the main fleet and 12th chat. You will find the fleet invite in your Fleet window, and the chat invite will be in your chat options under the "Channels" tab. Be sure to press the button to join the "12th" chat channel. The "12th" channel is shared by all our fleets (Main, Reserves, and KDF), and it is where almost all our chat happens in game. We are going to seem like a very quiet fleet if you are not on the "12th" channel.
(See Infohub: Communication Channels.)