There three class in all,medic,assualt,heavy, in RPG I call those class like cleric assassin and tank .

• Medic(cleric): have heal skill and faster movement.
  
• Assualt(assassin): have decent dmg and explode skill.
  
• Heavy(tank): could carry heavy weapon without movement penalty, skill that absorb damage.

you could carrys two main weapons and a pistol, which I personal recommand one main weapon go with smg or assualt rifle, the other one go with brust weapon like shotgun or snipe gun.

the charater perk have different type, some give you more hp, some give you more critical dmg, some give you faster reload speed........

in early you will need most on three basic and important thing.

• HP and HP generate (most important)
  
• faster reloading time and critical chance(more dps)
  
• shorter revive time and energy(you could skip it early if you don't want to go coop)

Early stage there have stage 3 Survivors, which gain you tons of cash on early

After level 9 there had stage 5 V.I.P, which very easy to run in solo, which could easy done under four mintues.

in the time found V.I.P speed run with smg or assualt rifle, and use the high brust weapon like snipe gun or shotgun to take down machince zombie and gunner.

After 15 lvl you gonna have chance to participate the Last man stand event, which you need do go into at least 50% above of that day to get reward.

you need two weapon, one do the straight damage like the smg, another weapon do Aoe damage such as the rocket launcher, remember boosted three things before enter battle.

1.Boosted your speed at least total for 10%
2.Boosted your hp regen higher than 10 hp per sec
3.Boosetd your reload speed at least 10% (important, don't bring gun which needs more than 2 sec to reload.)

I personal have one thuder sniper do the Aoe, than another LMB for straight damage, the LMB is special which have 200 round but only need 2.1 sec to reload, believe or not in this mode I still often face difficult to reload for even while with this equitment, which is the reason I told people don't bring weapon with more than 2 second of reload times, which basical is suicide.

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