[HAZ5+] Burn 'em all!

Simple build with good damage against all targets. Just burn small bugs with flamethrower and kill big ones with subata.

HAZ5 and HAZ5+ welcome, brothers! This build has enough effectiveness to play on high game difficulties. But I don't recommend this build because of lack of secondary weapon ammo (yeah it's sad, subata has very good damage, but it has not enough ammo to kill 5-10 praetorians per wave).

Primary weapon

The best option for flamethrower by now. Very much ammo, very good sustain because of Fear and good damage with Heat Radiance. Also, you can kill praetorians effectively with secondary weapon because of Fear in T4 (you can replace Fear with ammo, if you feel like it).

Secondary weapon

Good single target option, especially against macteras and bombers since they have vulnerability to fire damage (that +50% dmg in T5 has fire damage, not kinetic). But this weapon has one very big problem. Ammo. Guys really ammo just disappear like our bag is as small as my sleep time. This is the one and the last problem of this weapon. At all, this build has very food DPS, but, if we can't shoot for s while, DPS doesn't mean anything.

To other equipment:

Drills. My opinion: the only build that you should use is 1111. Enough damage, enough digging speed, enough fuel. To kill half-killed bugs we chose T1. But if you don't use cryo cannon as primary, you can choose 2111.

C4 has only 4 builds: 4 (the best), 3 with big AoE, 3 with big damage and 2 with BIG damage. The last variant is good only in 2 situations: killing Caretaker on HAZ5 (this is important) and destroying Hiveguard's yellow phase. 3 C4s with damage variant is for killing Caretaker on HAZ5+ with enemies' hp boosted. 3 with big AoE variant is good, but only if you don't have enough AoE damage with your weapons (this is almost impossible). And the last variant - 4 explosive supplies with Fear (this is very important). This variant is good, because Fear makes all bugs not to attack you. So, you can throw C4, make KABOOM and revive teammate, take resupply or just run. This is very good (yeah, you can still chose 3 C4s with damage or AoE and chose Fear, but... idk why you need to use damage and AoE is bad too, IMHO). Also, 4 C4s provide you opportunity to use them for collecting resources fast. Very versatile and sustainable option.

Grenades:

• Axes are best of the bests. Stun praetorian while he is attacking, kill mactera, kill oppressor, kill bug when you need to heal etc. Too many situations when they are useful. And when you don't need them (you have 6 and already need to take supply), so just throw them out and they will wait you.
• HE is good against macteras, but my opinion: you have primary weapon to kill them. All of three primaries are good with it. Also HE is good against small crowds of grunts (but, bro, you have primary weapon, again!), so...
• Neurotoxin grenade. Good (very good!) against all types of enemies. Except robots. I mainly use it on Doretta Defense.
• Springloaded Ripper (reaper of teammates' hp). Weird and unpredictable (mainly unpredictable) trajectory of moving makes it very unexpectable way to kill teammates. They won't realise what killed 'em! Buy 4 and get 2 for free... Yeah, it is good for killing crowds, good for defending in bunker, but it has very (VERY!) big problem. Friendly fire. Don't use it, if you want your teammates to live.

Perks:

• Passive: Resupplier and Vampire are perks that I use always. Because they are the best perks in entire pool. So, what for the last slot? You can choose from: Deep Pockets (versatile perk, if you don't know what to choose), Sweet Tooth (another versatile perk), Elemental Insulation (very good perk when you need to fight against praetorians, acid spitters and acid spreaders), Born Ready (flamethrower + subata moment), Thorns (swarmers and naedocytes moment, but you are driller, why do you need it?). My everyday choice is Sweet Tooth, and Born Ready for flamethrower + subata builds. But I considering using Elemental Insulation instead of Sweet Tooth.
• Active: Iron Will is too good, that's why I use it always. Second slot can be: Dash (the best active perk after Iron Will for all classes except scout), High Senses (leech moment), Medic. My choice is Dash because I really love being fast and mobile.