I'm a bubble Titan since beta and it's fine. Getting a grenade every time you set it makes it so almost nothing can get to you if you can use the suppression grenade. Also you have to be changing it depending on the situation armor for taking over zones and blessing while holding and never put it on the zone if you are defending. You are just asking for it to get wreaked. Remember being support means you will never be a beast mode slayer but you should win more than you lose if you can adjust