"Go through the entire campaign on the hardest difficulty using only the weakest weapon" types really grind my gears because 9 times out 10 the weapon isn't just weak it's boring as [b]f[/b]uck to use but there is also "Kill X number of enemies with Y weapon" which ticks me off for the same reason....neither require skill and it just makes the game a tedious mess.
The only trophies that should exist IMO are ones for beating the game on a certain difficulty, completing side-quest, defeating secret bosses, and collecting everything.