Mastagoon

try this:
if ( .@map$ == "guild_vs1" && (BaseLevel < 85 || BaseLevel > 115) )  

Add the option to set a threshold for announcement inside onInit, and then check for it whenever someone wins a reward:
OnInit:
setarray .p1, 32131,100,   19827,1,1,  5335,1,1,   32041,1,28, 32091,1,28, 32092,1,28, 32093,1,28, 32040,1,28, 7517,1,70;  // Gold Coin announce_threshold = 5;        // <<<<<<<<<<<<<<< ADD THIS LINE   Inside your code: mes "You got ^FF00CC"+ getd( ".p"+ .@s +"["+( 1+3*.@r -1 )+"]" ) +" "+ getitemname( getd( ".p"+ .@s +"["+ (1+ 3*.@r -2) +"]" ) ) +"^000000";  if(getd( ".p"+ .@s +"["+ (1+ 3*.@r) +"]" ) <= .announce_threshold)          announce "Player "+strcharinfo(0)+" Has won "+getd( ".p"+ .@s +"["+( 1+3*.@r -1 )+"]" ) +" "+ getitemname( getd( ".p"+ .@s +"["+ (1+ 3*.@r -2) +"]" ) )+" From the Gacha!";

announce "Player "+strcharinfo(0)+" Enters the PvP Room.",bc_all|bc_blue; The line above announces it to the entire server. You want this line right above the warp script.
To make the announcement only inside the pvp room:
mapannounce strcharinfo(3),"Player "+strcharinfo(0)+" Enters the PvP Room.",bc_map|bc_blue;  

Here's one solution:
In script.inc. Add this function at the end of the file:
BUILDIN_FUNC(logout_tick) { TBL_PC *sd; if (!script_rid2sd(sd)) { script_pushint(st, -1); return SCRIPT_CMD_FAILURE; } if (sd->canlog_tick == 0) script_pushint(st, 0); else script_pushint(st, DIFF_TICK(gettick(), sd->canlog_tick)); return SCRIPT_CMD_SUCCESS; } in script_def.inc. Add this line at the end of the file:
BUILDIN_DEF(logout_tick, ""), Then recompile your server.
This script command will check for the same timer used to check if a player can log out or not. Basically it returns how many milliseconds ago was the character in combat.
Example usage:
- script testscript -1,{ OnInit: bindatcmd("testcmd", strnpcinfo(3)+"::OnAtCmd"); end; OnAtCmd: .@tick = logout_tick(); dispbottom "You have been in combat "+.@tick/1000+" seconds ago."; if(.@tick >= 5000 || .@tick == 0) dispbottom "Command used successfully!"; else dispbottom "You cannot use this command if you have been in combat during the last 5 seconds."; end; } Result:

Sorry for the delay, here's the correct code:
- script maintown -1,{ OnInit: bindatcmd "maintown",strnpcinfo(3)+"::OnAtcommand"; end; OnAtcommand: if(gettimetick(2) < cooldowntime) { dispbottom "Please wait "+(cooldowntime - gettimetick(2))+" seconds."; end; } atcommand "@warp prontera 158 144"; set cooldowntime, gettimetick(2) + 5; end; }

you forgot to end the OnInit event
just add end; below `bindatcmd "guide", strnpcinfo(3) +"::Onguide";`

if i'm understanding correctly, the problem is that the event/round ends as soon as the npc announces its coordinates? and you need to to wait 15s first?
if that's the case, just add this line:
if ($@ran == 2) set $@jmpmap$,"morocc"; if ($@ran == 1) set $@jmpmap$,"prontera"; announce "Jumper Event : Go Find me!! I'm here in "+$@jmpmap$+"!!!",bc_blue; set $@JmpRnd,10; sleep 15000; // <<<<<<<<<<<<<<< Add this goto OnStart; and the npc will wait 15 seconds after announcing its map before jumping again.
and more importantly you should be using sleep and not sleep2 in this script. change all your "sleep2" lines with sleep.
 

what do you mean by having a normal and a hard mode instance? are we talking about 2 different instances with different monsters/story/etc..?
if that's the case then it's fairly simple,  you want you can look at Old Glast Heim's entrance npc for example: 
 
.@mode = select("Normal Mode:Hard Mode"); if(.@mode == 1) { // enter intsance #1 } else if(.@mode == 2) { // Hard Mode //enter instance #2 } but if you have only 1 instance and want to make a hard mode from that instance well then it depends.
if we're talking about a single instance you can just store the difficulty in an instance variable and edit the monster spawns and summon a harder version of the monsters in hard mode, for example:
if('OGH_Mode < 2) // Normal Mode monster 'map_name$[1],158,255,"Amdarais",2476,1,instance_npcname("#ghmemorialmob07") + "::OnMyMobDead";// MG_AMDARAIS else if('OGH_Mode == 2) // Hard Mode monster 'map_name$[1],158,255,"Amdarais",3150,1,instance_npcname("#ghmemorialmob07") + "::OnMyMobDead";// MG_AMDARAIS but yeah it really depends on what the difference between normal and hard mode is.