Spoiler, su and ost are both cheap cause they need to build and get no free stuff like powercreeps dlc, when u look at cost su and ost are balanced against eachother , while west faction are balanced against eachother
This.
For the topic : Infantry sections can use a MP or reinforcement time reduction. They absolutely terrorize when upgunned and vetted -every infantry can do that you might say well Tommies have a higher ceiling-