Attack commands problems in my script

//==================================================
//  Campaign1/map2 -- harpies -- AI Script
//========================================================
globals
    player user = Player(0)
    player blue = Player(9)
	constant integer HARPY_SCOUT           = 'nhar'
	constant integer HARPY_ROGUE           = 'nhrr'
	constant integer HARPY_WITCH           = 'nhrw'
	constant integer HARPY_HAG              = 'nhrh'
	constant integer HARPY_QUEEN           = 'nhrq'
	integer ks     = 0
	integer kr     = 0
	integer kw     = 0
	integer kh     = 0
	integer khb    = 0
	integer khc    = 0
	integer kq     = 0
	integer kqb    = 0
	integer wave1  = 0
	integer wave2  = 0
	integer wave3  = 0
endglobals

//========================================================
//  downto_zero
//========================================================
function downto_zero takes nothing returns nothing
    
    set ks    = 0
    set kr    = 0
    set kw    = 0
    set kh    = 0
    set khb   = 0
    set khc   = 0
    set kq    = 0
    set kqb   = 0
    set wave1 = 0
    set wave2 = 0
    set wave3 = 0

endfunction

//========================================================
//  main
//========================================================
function main takes nothing returns nothing
	
	local integer c = 0
	
             call CampaignAI(PIG_FARM,null)
	call SetReplacements(0,0,0)

	call CampaignDefenderEx( 0,2,0, HARPY_QUEEN	        )
	call CampaignDefenderEx( 0,2,0, HARPY_HAG		)
	call CampaignDefenderEx( 0,2,0, HARPY_WITCH		)
	call CampaignDefenderEx( 0,2,0, HARPY_ROGUE		)
	call CampaignDefenderEx( 0,2,0, HARPY_SCOUT		)

    loop

    set c = c + 1

    //*** WAVE 1 ***
    call InitAssaultGroup()
    call CampaignAttackerEx( 0,3,0, HARPY_SCOUT )
    call CampaignAttackerEx( 0,1,0, HARPY_ROGUE )
    call SuicideOnPlayer(M2,user)

    //*** WAVE 2 ***
    call InitAssaultGroup()
    call CampaignAttackerEx( 0,6,0, HARPY_SCOUT )
    call CampaignAttackerEx( 0,3,0, HARPY_ROGUE )
    call SuicideOnPlayer(M3,user)

    //*** WAVE 3 ***
    call InitAssaultGroup()
    call CampaignAttackerEx( 0,4,0, HARPY_WITCH )
    call CampaignAttackerEx( 0,1,0, HARPY_QUEEN )
    call SuicideOnPlayer(M4,user)

    if c == 2 then
	set ks    = ks + 2
	set kh    = kh + 2
	set kq    = kq + 1
	set wave1 = 220 //+20 secs
    		elseif c == 3 then
			set ks    = ks + 2
			set kh    = kh + 2
			set kq    = kq + 1
			set wave1 = wave1 + 220 //+20 secs
    				elseif c == 4 then
					set ks    = ks + 2
					set kh    = kh + 1
					set wave1 = wave1 + 110 //+20 secs
    endif

    //*** WAVE 4 ***
    call InitAssaultGroup()
    call CampaignAttackerEx( 0,2+ks,0, HARPY_SCOUT )
    call CampaignAttackerEx( 0,1+kh,0, HARPY_HAG )
    call CampaignAttackerEx( 0,1+kq,0, HARPY_QUEEN )
    call SuicideOnPlayer(180+wave1,user)

    if c == 2 then
	set kr    = kr - 2
	set kw    = kw + 2
	set khb   = khb - 1
	set wave2 = -50 
    		elseif c == 3 then
			set kr    = kr + 3
			set kw    = kw + 2
			set khb   = khb + 3
			set wave2 = wave2 + 300
    				elseif c == 4 then
					set kr    = kr - 1
					set kw    = kw + 3
					set wave2 = wave2 + 60
    endif

    //*** WAVE 5 ***
    call InitAssaultGroup()
    call CampaignAttackerEx( 0,5+kr,0, HARPY_ROGUE       )
    call CampaignAttackerEx( 0,2+kw,0, HARPY_WITCH )
    call CampaignAttackerEx( 0,2+khb,0, HARPY_HAG )
    call SuicideOnPlayer(360+wave2,user)

    if c == 2 then
	set khc   = khc + 2
	set kqb   = kqb + 2
	set wave3 = 280
    		elseif c == 3 then
			set khc   = khc + 2
			set kqb   = kqb + 1
			set wave3 = wave3 + 200
    				elseif c == 4 then
					set khc   = khc + 2
					set kqb   = kqb + 1
					set wave3 = wave3 + 200
    endif

    //*** WAVE 6 ***
    call InitAssaultGroup()
    call CampaignAttackerEx( 0,2+khc,0, HARPY_HAG       )
    call CampaignAttackerEx( 0,2+kqb,0, HARPY_QUEEN		)
    call SuicideOnPlayer(240+wave3,user)
    
    //*** WAVE 7 ***
    call InitAssaultGroup()
    call CampaignAttackerEx( 0,8,0, HARPY_SCOUT       )
    call CampaignAttackerEx( 0,5,0, HARPY_HAG )
    call CampaignAttackerEx( 0,2,0, HARPY_QUEEN )
    call SuicideOnPlayer(M9,user)
    
    if c == 4 then
	set c = 0
	call downto_zero()
    endif

    endloop
endfunction