MANTECH interview questions

A single in-person interview. Interviewers were late, nobody was at reception. Employees just ignored me. Fedex came showed up and they helped him but continued to ignore me. More employees came by, one asked me who I was and I told him my fully name and who I was interviewing with. He left, came back again, ignored me, started talking on his phone. The receptionist came back and was able to communicate with me that this person who had been ignoring me and talking on his phone was there to interview me. Said interviewer wouldn't greet me or introduce himself. Weird cultural difference. Finally the remainder show up and the interview goes underway. Interviewers are busy working from their laptops. They ask a lot of questions specific to their tech stack and its design patterns and seem baffled that other companies would choose different design patterns. As well as huge language miscommunications where often times nobody understood the other party due very poor command of English by the interviewers. They cut the interview short by PM'ing someone to walk in and hand someone a small slip of paper full of bad acting to signal that the interview is over. Verdic: This place is a total Infosys/Tata consulting style bodyshop. Sad that they are passing over actual veterans and looking to hire non-US citizens, putting them into management when they can't even speak English well.