I love Neal Asher’s books, found him a long time ago in one of those “year’s best” collections of short stories from the library (though the ones with fantasy and horror were always the best, I think I read every single collection for every year and found so many good writers that way.)
They are full of action, good characters and worlds and ideas, sweeping and huge settings. Feels almost more like watching a movie to read them.
Who among us likes these action packed stories?
There’s a close relationship, or at least some significant overlap/intersection between military SF and space opera.
Weber’s Honor Harrington series would be considered both. Likewise, Tanya Huff’s Confederation novels are unabashedly military SF, but within a decidedly space opera overall frame that is progressively revealed through the course of the series.
Some space opera series, like Bujold’s Vorkosigan Saga cross back and forth across diverse sub genres - some military SF in some, political space opera in others along with some social and genetic engineering here and romance there.
CJ Cherryh’s Alliance-Union Universe isn’t primarily military SF, but it’s in the mix.