The article says a team from DoJ appeared at the FBI headquarters with the letter from P Trump, and locked down everything. The fact they fired him when he was away clearly demonstrates that what they were doing would in business be called a hostile takeover.
" a team from DoJ appeared at the FBI headquarters"
If so, then this article holds water. Otherwise, all I've heard about this matter is that the letter of termination was "delivered" to Comey's office.