Game Link:
http://www.kongregate.com/games/ehaugw/lead-for-dead-ii

Description:
Train skills, select perks, buy upgrades, and unlock weapons, attachments and perks while trying to survive almost endless waves of zombies. Track your statistics, complete achievements and play campaign.

Cheats:
AoB:
Hit's Add Life(Campaign or Survival)
96 07 00 08 09 07 0a 00 00 00 30 96 05 00 07 05 00 00 00 47 96 07 00 07 01 00 00 00 08 07 1c 96 02 00 08 0a 4e 0c 47 =>
96 07 00 08 09 07 64 00 00 00 30 96 05 00 07 05 00 00 00 0c 96 07 00 07 01 00 00 00 08 07 1C 96 02 00 08 0A 4E 0C 0c
Side-note:
Pretty sure this game is set up to get badges, don't know if it means anything though. Here's the code I'm basing that off of.
this.onEnterFrame = function ()
{
    kongregate.services.connect();
    if (kills > 0)
    {
        _root.kongregateScores.submit(kills);
        _root.kongregateStats.submit("plays", _root.FaciZombies.data.TimesPlayed);
        _root.kongregateStats.submit("kills", _root.FaciZombies.data.HighestKills);
        _root.kongregateStats.submit("level", _root.FaciZombies.data.Level);
        _root.kongregateStats.submit("totalscore", _root.FaciZombies.data.TotalScore);
    } // end if
    if (_root.FaciZombies.data.Prestige > 0)
    {
        _root.kongregateStats.submit("prestige", _root.FaciZombies.data.Prestige);
    } // end if
    _root.kongregateStats.submit("badge1", _root.FaciZombies.data.Achievements[1]);
    _root.kongregateStats.submit("badge2", _root.FaciZombies.data.Achievements[4]);
    _root.kongregateStats.submit("badge3", _root.FaciZombies.data.Achievements[6]);
    if (_root.FaciZombies.data.Achievements[8] == 1 && _root.FaciZombies.data.Level >= 12)
    {
        _root.kongregateStats.submit("badge4", _root.FaciZombies.data.Achievements[8]);
    } // end if

They may be all set up and ready but with the way Campaign is set up.. along with the piss poor graphics quality (I have high standards) it will never get badges.