This might very well be a mistake, but this mistake is present in five main Front Mission games (and spin-offs as well, if Zaftra is mentioned in any of these), so it's as official as it gets. But yeah, developers' knowledge of Russian is certainly isn't stellar. Take, for example, FM4's main villain - Anizka Ivanovna Aleksandrow. This name is so incorrect it almost seems like an intended mockery...