Weapons Advice v2.1(shooter mk4)

I need a bit of help.I could upgrade my current loadout more,but I kinda stuggle with it,and I think it's because of bertha.I love that weapon's dmg,but overall...not so good.The projectile is so damn slow,I get lucky if I manage to deal 40 damage to a speeder.It's true,when I land a good shot I obliterate the enemy team..but still seems quiet weak.
Also,about the rare sniper,I'll slowly upgrade it until it gets better that the uncommon one.
So I'm asking for a decent replacement.Also,I was thinking about using epic blast cannon??but it will take me a century to get enough epic part to hit lvl 10 with it.
Btw,if you think I could get a better overall weps loaudout,you can tell me.I'm always open to new ideas(a combo loadout would be spicy °¿°)

 

Try:
Epic Blast Cannon
Sniper Cannon
Cannon
and Napalm?
I don't know cuz my deck is:
Cannon(tier2)
Sniper Cannon(tier2)
Napalm(level4)
and epic swift torpedo

 

Here is what I run.Rare cannon T1( been looking for a dupe from 40 days now),rare sniper level 20,rare standard mortar level 23 and then the 4th slot I keep cycling between rare T2 explosive cannon,rare big topedo and firebomb.But the first three are a must to me.And I dont recommend using a bertha.The standard mortar has faster projectile speed,less damage but the difference isnt too much because its cooldown is only 9 seconds.Another tip just like how you lead shots with cannons do it with mortars too.Dont just shoot when it turns green.Lead the shot in the direction of the enemy movement and with enough practice you can make sure most times they are right in the centre of the impact.This does 30% more damage.For example my mortar does a base damage of 404 but for enemies in the centre it does 530 which is huge.Sorry for the wall of text lol Iam on my phone typing this

 

Since I got serveral accounts and 1 of my account use mk4 shooter,I found my setup deal great damage
Rare t2 cannon
Epic ballpark mortar(highly unrecommended)
epic firebomb
Rare naplam t1 max level
I suggest you to use sniper cannon,Bertha,naplam and swift torpedo since:
Naplam can keep ships away from burnt area
U can keep using the Bertha,but try to focus on upgrading only 1 item
Sniper cannon can hit ships on long range.i don't suggest u also use bc since u have to choose talents between SC and bc
Swift torpedo can damage ships in a high speed,and can be very useful when yr enemy team is sticking together
I also suggest u for yr big shield since shooter needs high hp instead of bandage,as yr ship isn't fast enough to dodge much mortar sometimes

 

Check out these builds:

I especially like yellowocean´s build and at 2:02 porthos tells you why

 

You should be ignoring the speeders, except with your cannons. They are supposed to be slippery.