Which science-fiction militaries fit their own technology?

Which science-fiction setting has the most plausible tactics, strategy and ship design in relation to its own technology and rules?

Stargate is one choice for consistent space combat, with Star Trek and Warhammer 40,000 offered as alternatives under their own fictional rules.

Stargate is one choice for space combat that usually follows its established technology. The caveat is the zat gun, whose third shot inconsistently makes a body disappear. Star Trek is another proposed example. Warhammer 40,000 has a different technological baseline: the Imperium is regressing, and the Mechanicus restricts innovation. A reply points to slow renewed progress under Guilliman, so the competing assessments depend on the setting's institutions as well as its weapons.