I'm not sure specifically as I haven't read it yet. It could be about a new kind of military or special forces operation (since'sigma' can be related to military in some contexts), or it might be a science - fiction story with a new force concept in it.
I don't know the 'new sigma force novel' well enough to say who the main characters are. It could be the leaders of the sigma force or some individuals with special skills within the force.
The order of Sigma Force novels can usually be found on the author's official website or in the book's copyright page. You can also check popular book databases for accurate sequencing.
Another great one from the list might be 'The Doomsday Key'. In this novel, the Sigma Force has to deal with threats related to food sources and ancient secrets. It has a really engaging plot that keeps you on the edge of your seat. There are complex characters and a lot of scientific and historical elements woven into the story, which makes it really interesting.
I'm not entirely sure which 'sigma force novels' you specifically mean. There could be various ways to order them, such as by publication date, in - universe chronological order, or by popularity. Without more information, it's difficult to determine the exact order.
I'm not sure exactly as I haven't read it yet. But generally, a Sigma Force novel usually involves some kind of adventure, mystery and often scientific or historical elements.
A good sigma force novel for beginners could be 'Cemetery Dance'. It offers a balanced mix of adventure and suspense. The Sigma Force in this novel is presented in a way that is easy to understand for new readers. It also has a plot that is not overly complicated but still provides an exciting read with elements of danger and discovery.
I'm not sure specifically which 'best sigma force novel' you're referring to. There could be many novels with various themes. It might be about a special military force called Sigma Force in some action - adventure story, or it could involve some scientific or mystery elements related to a Sigma Force.