It was a scifi novel similar to the movie dark man a guy is badly injured in a deliberate lab accident. On the run and seeking his attackers he uses several different exoskeleton suits that look like large humans (think a full body version of the head arnold wore in total recall)
One is a huge hoss like texan, another is a sumo like asian giant.
One scene is in a hotel room where he rigs an early warning trap to the room door

Any help is appreciated