Try to spawn him through a script that is activated by a trigger...

antonio, i think he might need you to elaborate. He said he is beginner enough to hardly understand the script part so it would be a good idea to provide him some elaborated details on how to do that.

Well, you make an AI and tick spawner...make a triger( name it however you want)...then the script comes

obj1() 
{ 
obj_1_trigger=getent("cname of the objective trigger", "targetname");
obj_1_trigger= waittill ("trigger");
wait(0.25);
obj_1=getent("name of the AI sniper", "targetname" );
obj_1_spawn = obj_1 dospawn();
wait(0.25);
objective_add(1, "active", &"FROST_OBJ1",getent("obj1", "script_noteworthy").origin); 
objective_current(1); 
iprintlnbold ("Press the |Tab| key to check your Objectives");
if(isAlive(obj1)) 
obj1 waittill("death");//OR TRY obj_1_spawn waittill("death");
objective_state(1, "done"); //Objective 1 is done 
wait(2); 
iprintlnbold (&"FROST_OBJ_COMPLETED"); //Let player know he is done 
wait(3); 
missionSuccess ("dawnville",false);
}

Update time; I am happy to say that all of the objectives have already been made!

Though, they're not really complex objectives, mostly just kill him, pick up that, put it there, and go there. I've attached some screenshots of some of my objectives, I even got them to shine yellow. About the sniper spawning issue: I don't really care enough to make him a spawner and test several times to see if the objective works. The map works fine as of right now. Perhaps when I'll release the source files with the map download you guys can see all the mistakes and errors I've made with the map.

Here is my frost.gsc file right now, to give you a glimpse of what my objectives are.

#include maps\_utility;

#include maps\_anim;

#using_animtree("generic_human");

main()
{
maps\_load::main();
ambientPlay("ambient");
setCullFog (500, 10000, 0.0274, 0.0823, 0.1607, 0 );
setEnvironment ("cold");

//////////PLAYER SETUP//////////

level.player setViewmodel( "xmodel/viewmodel_hands_russian" );
level.player takeallweapons();
level.player giveWeapon ("colt");
level.player giveWeapon ("fraggrenade");
level.player switchToWeapon ("colt");

//////////INTRO SCREEN//////////

precacheshader("black"); // Precaches the black shader
precacheString(&"FROST_INTRO_1"); // The title of the Level
precacheString(&"FROST_INTRO_2"); // Where the level takes place
precacheString(&"FROST_INTRO_3"); // Month Day, Year
precacheString(&"FROST_INTRO_4"); // Optional info about the level
maps\_introscreen::introscreen_delay(&"FROST_INTRO_1", &"FROST_INTRO_2", &"FROST_INTRO_3", &"FROST_INTRO_4"); // Action!!

//////////HIDE FLASHING OBJECTIVES//////////

obj5 = getent("obj5", "targetname");
obj2_flash = getent("obj2_flash", "targetname");
obj4_flash = getent("obj4_flash", "targetname");
obj5_flash = getent("obj5_flash", "targetname");
obj6_flash = getent("obj6_flash", "targetname");
obj5 hide();
obj2_flash hide();
obj4_flash hide();
obj5_flash hide();
obj6_flash hide();
obj1();
}

//////////OBJECTIVES//////////

obj1()
{
obj1 = getent("obj1", "targetname"); //Get entity(German AI) in map
block1 = getent("block1", "targetname");
objective_add(1, "active", &"FROST_OBJ1",getent("obj1", "targetname").origin);
objective_current(1);
iprintlnbold ("Press the |Tab| key to check your Objectives"); 
obj1 waittill("death"); //Waits till German AI is killed
block1 delete();
objective_state(1, "done"); //Objective 1 is done
maps\_utility::levelStartSave();
wait(2);
thread obj2();
}

obj2()
{
obj2 = getent("obj2", "targetname");
obj2_flash = getent("obj2_flash", "targetname");
block2 = getent("block2", "targetname");
trigg_obj2 = getent("trigg_obj2", "targetname");
obj2_flash show();
objective_add(2, "active", &"FROST_OBJ2",getent("obj2", "targetname").origin);
objective_current(2);
trigg_obj2 waittill("trigger");
trigg_obj2 delete();
obj2 delete();
obj2_flash delete();
block2 delete();
objective_state(2, "done");
maps\_utility::levelStartSave();
wait(2);
thread obj3();
}

obj3()
{
obj3 = getent("obj3", "targetname"); //Get entity(German AI) in map
block3 = getent("block3", "targetname");
objective_add(3, "active", &"FROST_OBJ3",getent("obj3", "targetname").origin);
objective_current(3); 
obj3 waittill("death"); //Waits till German AI is killed
block3 delete();
objective_state(3, "done"); //Objective 3 is done
maps\_utility::levelStartSave();
wait(2);
thread obj4();
}

obj4()
{
obj4 = getent("obj4", "targetname");
obj4_flash = getent("obj4_flash", "targetname");
block4 = getent("block4", "targetname");
trigg_obj4 = getent("trigg_obj4", "targetname");
obj4_flash show();
objective_add(4, "active", &"FROST_OBJ4",getent("obj4", "targetname").origin);
objective_current(4);
trigg_obj4 waittill("trigger");
trigg_obj4 delete();
obj4 delete();
obj4_flash delete();
block4 delete();
objective_state(4, "done");
maps\_utility::levelStartSave();
wait(2);
thread obj5();
}

obj5()
{
obj5 = getent("obj5", "targetname");
obj5_flash = getent("obj5_flash", "targetname");
block5 = getent("block5", "targetname");
trigg_obj5 = getent("trigg_obj5", "targetname");
obj5_flash show(); 
objective_add(5, "active", &"FROST_OBJ5",getent("obj5", "targetname").origin);
objective_current(5);
trigg_obj5 waittill("trigger");
obj5 show();
obj5_flash delete();
trigg_obj5 delete();
block5 delete();
objective_state(5, "done");
maps\_utility::levelStartSave();
wait(2);
thread obj6();
}

obj6()
{
obj6 = getent("obj6", "targetname");
obj6_flash = getent("obj6_flash", "targetname");
block6 = getent("block6", "targetname");
trigg_obj6 = getent("trigg_obj6", "targetname");
obj6_flash show();  
objective_add(6, "active", &"FROST_OBJ6",getent("obj6", "targetname").origin);
objective_current(6);
trigg_obj6 waittill("trigger");
trigg_obj6 delete();
obj6 delete();
obj6_flash delete();
block6 delete();
objective_state(6, "done");
maps\_utility::levelStartSave();
wait(2);
thread obj7();
}

obj7()
{
trigg_obj7 = getent("trigg_obj7", "targetname"); 
objective_add(7, "active", &"FROST_OBJ7", (-4288, 17440, -544));
objective_current(7);
trigg_obj7 waittill("trigger");
objective_state(7, "done");
trigg_obj7 delete();
wait(1);
iprintlnbold (&"FROST_OBJ_COMPLETED"); //Let player know he is done
missionSuccess ("dawnville",false);
}

Also, finishing objectives has made me that much closer to releasing this map, up next I need to place all the AI in. time to update the list from page 6:
1) Terrain
2) Spawning AI
3) Objectives and saves
4) Effects (FX)
5) Sounds/music
6) Making a .IWD file

Thanks for tuning in, until the next update!

Good luck mate!

So many damn lines...

In other words, I'm almost finished placing the AI in the first part of the village. However, as seen in the attached photo, it gets pretty messy fast. Thank goodness for layers!

Oh you haven't seen anything yet xD
I've attached a pic of one of my campaign missions in COD4.
That - is - messy.
BTW I started messing with cod2 mapping too.
Do you have steam or smth? so we can chat and help eachother?

Holy $hit SPi, what am I looking at? Why is it so colorful? Also, I've just made a steam account, unsure how to use it though. My profile name is rr0162.

Well it looks like I've encountered another problem, and I feel like giving up on this map.

When testing the map in-game, some of the AI doesn't spawn like it should be. The triggers and spawners are all connected so it should work. I have a hunch that there could be a maximum amount of enemies/actors are allowed on maps for them to function. My attached photo shows just how many AIs are spawned when walking through some triggers. There are 58 yellow lines, yup 58 AIs. Maybe I'm going overkill with the amount of AI? I just don't know anymore.

CoD2 is really starting to annoy me. There seems to be a problem with something all the time. Help?

That's how COD mapping is. Constant problems and errors. Maximum AI is 32. 58 is too much yes. Try to spawn them in smaller amounts or make them respawn. There are tuts around on how to do this. What you saw in my pic was a complex combination of script and world entitles in a cod4 map. Which takes a lot of patience, nummerous errors to fix and struggle to learn what went wrong each time. Hope you find your way around.
As for steam, I think you need to buy smth so you can access the Friends feature so not sure if I can help you with it at this point.
Anyway good luck.