Need help for creating some rules in rules editor.

Hi, on BF2042, for xbox one, in free for all mode PvE, for Kaleidoscope and Manifest maps in the rule editor, I would like set the following rules/settings :

Have the ability to increase the number of bullets in primary weapon's inventory to 300.

Second weapon 150

Throwable 5

I would just like to start the game with more ammo of the same type and a few more throwables, and then play normally.

I know I can put endless magazines, changing ammo types in game, but I don't like it, so just for don't start searching for ammo on the ground after a few kills, I would like to set up the game this way.

After this, create one rule to force rain or extreme weather for the entire course of the match.

I have no experience how to create these rules, so I kindly ask If anyone has the patience to write or better to post a screenshot of these rules here, so that I can see the rules tree clearly.

Many thanks to anyone who wants to help me do this.