Lockheed Martin interview questions

I was contacted by HR telling me about two opportunities that I was being considered for. I was contacted almost exactly one month after applying to both positions online. I then organized travel arrangements through the company and was flown out on location in Fort Worth. I attended a hiring event at a hotel. Both interviews lasted one hour and were mostly them telling me about the company/job and asking me a few behavioral and situational questions to gauge my competency and whether they would like working with me. The interviewers included who my manager would be and an engineer in the department I would be working for. At the end they asked me if I had any questions. I asked at the end of both interviews when I would expect to hear back from them and was given vague answers that HR would handle it. While waiting for my flight later in the day I received a call from HR extending an offer. Shortly after getting the call, I was emailed the offer package. I had also interviewed at the main facility once and the process was the same.