Ridiculously overpowered weps can be easily added in w/ lua, if you feel like playing a mode like that.
Say, a rain of melons or HHGs.
But in usual gameplay aren't really that useful/fun.

If that happens, Rain of Melons or Something Devilish Grenades will be gotten very very rarely from the crates.

Well, the most trivial of scripts (like, a few lines) would be to replace an existing airstrike w/ melons or HHGs. like minestrike or drill strike. The scheme could then set that to a low probability crate. Or every crate or one for every hog or whatever.

i'll add idea for that F Airstrike,,,

i think its good if we have : "GOAB" {Grandpa Of All Bomb}

How its work ??? :
Its launched from long distance submarine, that you can see (it was near background) OR It dropped with a big aircraft,,, then it will go to the targeted area,,, BUT !!! Exploded Above targeted area, with planned high {Yeah, this bomb is Thermobaric Weapon like FOAB} ,,, Its can be also nicknamed as "Shock and Awe" ,,, it damage 10 times with small damage upon impact detonation and HAVE A WHOLE MAP RADIUS,,, Packed with Powerful BLOWING SHOCKWAVE,,, But the Effect created compared with the victim's range to the bomb target point,,, THIS NAMED POWERFUL

+SFX : Its good too if the Alarm Effect is aplied before detonation

how do you think about it ? maybe i would copy my words here if this thread is decaying away,,,

And dude,,, this must be part of "Support" Forum
and you need a support ?
if it is yup, then i yikes

You may want to look at the Game Hacks script:

https://hedgewars.org/node/6279

It allows you to modify a crazy number of gameplay parameters, including air strike missiles. It is for advanced users, but a very powerful tool.

Another script which might interest you is Mass Destruction by doom:
https://hedgewars.org/node/3120

Mass Destruction adds lots of crazy weapons (similar to what you suggested) and works out of the box.

Have fun!

You can try some of my scripts.