This is pretty minor but I've seen this several times on the battlefield with people entering and ejecting their guardian crate at the same time resulting in lost crate as the guardian dies when ejecting.

This could be fixed with some delay after entering the guardian when you cant eject. Think 1 second would suffice.

I am thinking, there was discussion before (where i failed) that guardian crate should be replaced with new mech. When you activate the crate you are going out WF hangar with that "Super-Titan".

Related to this here, now I don't know but it should select for you C4 as an item instead of eject-mech. Maybe problem is when you run out of all other items and only guardian crate remains.
When you activate guardian crate only eject-mech remains. so if you tap use item key two times, this can happen. I am just guessing the cause.

I'd say just replace the crate with a "Surprise Mech" one.

It's called the Surprise Mech crate because the mech you get is a surprise. It'll also make whoever's fighting you at the time tactically shit their pants.

Since guardian is a defense mech, then I guess some variety can be appreciated.

Yeah, getting a guardian crate when you are on enemy base as stealth trooper (that happened to me recently) makes almost no sense in regards of destroying enemy base. Though I just don't know how to use it properly.