>>719167426
the real reason is because fun
the lore reason is that since forerunner technology was sacred modifying it or innovating with it was incredibly haram beyond minor improvements that didn't change what or how it did something or purely visual changes and practical concerns like making the tech fit your hand so you can actually use it
beyond that you were only allowed to produce exact copies of found pieces of forerunner tech
>>719185872
because the sangheili were their military command and they are space lizard warrior-monks and a lot of them are stuck in the past and think that the only honorable way to fight is so close to your enemy you can count their skinpores
in h2/3 brutes were just monkeys that loved to hit things with whatever was in their hands at the time
they even put huge blades on their guns
grunts are too afraid and too low in the hierarchy to contest any of the retarded decision making
hunters are a bundle of worms
the prophets are too busy arguing about the finer details of forerunner architecture in their flying vibrator chairs
jackals are cowards
the bugs just want to murder
>>719186050
banshees are more like the A-10, they're obviously not intended as air superiority fighters