I know this sounds feddy, but bonus if they’re improvised, cos that shits awesome.
One of my favourites is the PRIG - an IRA made grenade launcher that used a packet of biscuits to offset and quieten the backblast.
I also made a crossbow that fired nuts and bolts using wood and resistance bands. Not a weapon of war and would never be lethal, but also probably not very legal where I’m from. I just used it to plink cans in the back garden when I was bored. Was actually quite a scarily powerful and accurate device for how crude it was.
Siege towers
Sappers in general, digging under walls to collapse them and shit like that.
Having shot the AR-15 a couple of times I can see why it was the standard issue for the military. Light easy to use and operate and very accurate.
Heartbreak.
I seduce the enemy leader’s spouse, and break their hearts.
elephants, because they have long trunks and they love their babies