Code:
if (e.KeyCode == Keys.E)
{

Native.Function.Call(Native.Hash.REQUEST_ANIM_DICT, "anim_dict_here");
Wait(50);
Ped[] NearbyPeds = World.GetNearbyPeds(Game.Player.Character,20f);
foreach(Ped p in NearbyPeds)
{
p.Task.ClearAllTasks();
p.Task.PlayAnimation(p,"ANIM_NAME","ANIM_DICT",8.0 , 8.0*-1 , -1 , 0 , 0 , false, false, false);
}

}

A lot of the variables in the PlayAnimation command are unknown, so if you want to figure out the different animation speeds and types, here's a link to GTA X Scripting

Animation dictionary list: Animation Dictionary

I'm currently trying to improve on the basic ideas of a bodyguard mod, but the one thing I can't manage is having my guards do a task, say attack a ped, while I (group leader) do something else. For example, if I'm walking around when I execute the "FightAgainst" task, my guards just keep following me. Also, if they're in the middle of walking to me and I tell them to fight a ped, even if I do "ClearAllTasksImmediately" they just ignore it and keep walking to me. Anyone have any ideas? I've attached a screenshot of the important stuff below.

@ikt Thanks so much!

I've started modding GTA with C# recently, and as a first test, I made a mod that spawns a ton of peds. It's all cool but when I kill them off, they never despawn, even if I leave the area for a day and come back. Anyone know a fix for this? Also, I've made a global ped variable and I'm not really sure what different handle values do.

Thanks!