Well, this put a wrinkle in his plan. The guards were now on alert and asking everyone to evacuate. Trying to push him and his guide back the way they came.
That wasn't going to happen. Sinister was too close to his prize to loose it now. He smiled at all the men with guns and lifted his hands. Red force blasts shot out in quick succession, knocking each of the men down and sending Synthia or Sharon or whatever her name was into the wall. He heard a snap as she hit, broken neck or spine. Either way, she wasn't getting up again.
Some of the men survived the impact because of their body armor. They got up groggily and fired their guns at him. The bullets tore through him, leaving tiny, liquid gray tunnels in their wake. Tunnels that sealed up as Sinister threw his head back and laughed.
His body expanded, a wave of flesh that crashed over those still living in the small space before the door. When the tide receded and became a body once more, the men were dead. Suffocated by a shapeshifter with complete control of every cell in his body.
Sinister straightened his shoulders and aimed both hands at the security door. He fired his force blasts at full strength and the thick metal could do little to withstand the impact. It clipped at least two people at it was torn from its housing and sent into the room beyond.