Getting filtered as a newbie

[Hebereke]

I'm having some issues dealing with some stuff while leveling.
I'm trying to beat the story missions and I'm currently stuck at 4-2 in episode 1. (normal mode since I can't start gov missions in solo mode).
It's a timed quest on the ruins and I just can't get to the end quick enough.
I'm a HUcast using a buster, giggush and mechgun.
I have no issues dealing with those flying tadpoles and dimenians. No trouble with those centaur like fellas. But death/dark gunners and delsabers? Damn.
One delsaber is easy, just circle around him and beat him. But against 4? I use freeze and confuse traps but sometimes they're just not enough.
Against dark and death gunners it's just a waste of time since they're immune to my attacks most of the time. Is a elemental weapon the answer?
So I can kill them with caution but in this mission I end up running out of time.
I'm kinda lost. Should I farm for better gear or just level a little? I'm lvl 23 iirc

Thanks!

 

[RakeRoberts]

Gunners can be effected by specials on your weapon. At level 23, you could grind hard forest for better gear and level up and have a less stressful environment to work on your mag.

 

[Ryan]

Gunners can be effected by specials on your weapon.

This. Load up Hard Forest, break boxes or kill enemies until you get a Dim or Shadow Handgun, then tekk it up to Shadow/Dark and spam the special attack on Gunners (and Delsabers if you want) until they die to the OHKO.

 

[Hebereke]

This. Load up Hard Forest, break boxes or kill enemies until you get a Dim or Shadow Handgun, then tekk it up to Shadow/Dark and spam the special attack on Gunners (and Delsabers if you want) until they die to the OHKO.

Gunners can be effected by specials on your weapon. At level 23, you could grind hard forest for better gear and level up and have a less stressful environment to work on your mag.

thanks lads, I'll try my luck in hard mode
ty!