This is the best use of an OPK.

[hihiman1]

The best use of an OPK that you can do is Quarantine mode. You guys probably already know this but ya. You dc then infect all the humans in the tower, or while you're a human you can dc then knife the infected in the head for 10 seconds and bam rc and he's dead. Do this at the very start when there's only 2 and you won. Or if you wanna be discreet then knife the zombies for only like 8 second for both of them, and then it's only a few more shots to kill them.

Both are really fun.

Excuses for the opk
_______________________
Human killing infected:
- ur an idiot how didn't u see me knifing u for like 10 seconds?
-infected:how did u kill me?
human : idk i guess you had little life left
alt. : y r u asking me?
alt2. : I knifed you

Infected infecting humans:
(You should only do this while they are guarding those doors that lock.)
Best excuse and the only one you will ever need
- I came from left side, you were all looking other way lol.
If they say that they were guarding left then say:
- right side w/e
This is good because there is no way for them to see both sides, and every one knows it's possible for the infected to go to tower in like 2 seconds if they sprint. The only way for them to really know that you're lying is if they ask their teammates that were guarding the other side, if they say that you didn't come, guess what you say?
-Then they're blind
Then the opposite team will think that they're stuck with noobs

[n3m1s1s]

I opk when im the infected!All those noobs in the office... so many kills...

[Inna]

yet it's still not as good exp as no infect rooms

[Banned4life]

sory i just hate it when people go around saying its opk but its not and then people go ooooh opk he must be heaps good coder or sumthing

u dont have to be a coder to get OPK...

[desto]

tap not opk, opk owns tap

[Kev]

is there one out yet that you dont have to have VIP hack....

[Ghty82]

Opk for humans is much nicer and more fun!

[jmend736]

Being a human and opking the infected.

[gunslinger55]

i do it sometimes but i hate the fact we have to restart combat arms it pisses me off.

[Truly Free]

Does anyone even have a public Working Opk? To do this?

[immrcuddles]

lol ive nvr tried tapping before

[startdriveturn]

Ya.Or you can use it in spy hunt and somehow get the intels.
Imagine if there was a hack that sucked in all the intels to you....
That would be classic/chaos
LOL

[Cl0neTr00per]

lol, knife the zombies in the head? Headshots don't affect them. Good try though.

[thorjc]

i just have opk... dont need to tap

[Shadowday]

Idk really cuz if u try opking zombie its takes forever to kill them even with knife and by the time u do either ull just stay d/ced from game or ulll already be infected