Lockheed Martin interview questions

I applied online the end of October and wasn't called for an interview until the beginning of December. The first one is an initial screening done by the HR and if you pass you are given an on site interview which is covered by the company. On the day of the interview I was told that it was going to be very informal and meet with 6 of the team members. I was interviewed by 2 people at a time for 45 min. Each. The interview covered a lot of what the job entailed and I was asked questions to make sure I fit the part. Everyone was very nice and professional however I was disappointed with the way they handled the communication of the following steps. I was told I would be contacted within the next week. I was never contacted by the company and had to send the HR team a few emails for them to finally let me know that I would not be offered the job. I don't mind that I didn't get an offer but I didn't like not knowing for so long and then never even getting a formal rejection letter was also pretty disappointing especially because I really wanted to work for this company.

Initial discussion with a recruiter over the phone. A day of interviews was set up where I interviewed with interested groups one at a time.