Loki is the best. Due to the fact of the damage it can do with the rods, the juggernaut and the crates.
There is so many tricks you can do with the loki.
The first one is my favourite. The normal mouse trap, drop a crate at the enemies populated area and rod anyone who gets near it. Or drop a juggernaut next to the crate and let it go rambo all over them.
Or go commandos and just monitor the juggernaut that you drop. Its visible on enemy radar so most likely, it becomes a heavy priority for the enemy team. Blast enemies that try to take it out.
Note: the juggernaut can also do objectives, say if your on domination. It can capture flags. Really good for tight situations on objective modes.
Sharing is caring, give your team mates crates to keep the loki at effect. As teammate kills don't count towards yours, but it certainly gives your opponents a hard time and can ensure a victory.
You can spam three crates from the loki and sometimes, you can get another loki from a loki crate.
The small rod is the one you should spam for one target. Save the large rod for groups as its aoe can easily pull multi kills. If enemies are at cover, shoot the large rod by the entrance and you can get enemies that are under cover.
You don't need to move around and search for opponents, try to note where they allarebefore using to save the moving around time.
Loki can take down helo scout, battle hinds, and helo pilot and that is what makes itthemost devastating streak to use.
Loki reason written above
Helo pilot, takes out countless enemies. Easy to use and very powerful. Hard to use on small maps like free fall or roofed maps like flooded. But tops the loki on mobility as it can pick up enemies far more easier.
Gryphon, if used right. It can be very devastating. It's mobility, target locator (thermal and target finder) and damage makes it very powerful.
Maniac, if ur good with a kinfe and throwing knife, u can be invincible with this streak. Its speed will allow you take on countless opponents. The throwing knife can save you at difficult situations, esp. At mid range. Use cover, stay in tight areas where ranges are all close.
Sentry, like you said. It's all about location. It can hold down positions. It is easy to take oit and get around, but for a 7 kill streak. .. it can be effective and at times, could take out many opponents.
Sat coms, if this is used correctly and by a group, it can be better than the oracle. You can use a perk to gain benefit of all sat coms on the map.
Note: only if used by a group. One person running a sat com is pointless.
Dog/wolf as it can fail to cover u at times, but it has sooo much uses. Some even indirectly. If your running and gunning, the dog can take out flankers and if there is a corner camper hiding in a room. Wait by the door and the dog will take it out. U can also use the dog to aware you of nearby opponents. When it growls, an enemy is close, when it cries, an enemy is at mid range. Look at your dog and you will see it facing the direction of the incoming enemy. Sometimes, the dog can terrify enemies (weaker players) get confused at what to shoot at. The dog or the player and end up dying by either before responding.
Battle hind, as this is an AI streak. It can take out enemies in the range of 0-5 per hind. It's easy to take down and isn't as scary as other streaks, but it does have an effect on the match. Sometimes it takes too long to take out targets, so it isn't really reliable to pile kills with in comparison to other streaks.
Juggernaut, as this is an easy target to take out. .. it should never be underestimated. Its most effective un tight closed areas. The minigun operates like the chainsaw. It's very devastating at close range. So stay away from opened areas and go into cover. U can occupy any location. Use the pistol if u need to gi faster and use the bomb if there is opponents camping in area that you plan to enter.
Ims, as u said can take out multiple enemies in populated areas. The motherlord of ieds lol. The ims can also hold down objectives. Not in blitz, though.
Trinity rocket, fast to use and can pick out 0-4 enemies. I usually get two kills... ._.but thus can be effective by pulling a few kills towards your next streak. The only problem for me, it is easy to evade and not really accurate.
Vulture, low duration, doesn't really target fast enough to be effective in its small period of time. Doesn't shoot long range. AI on it is very poor. As you can be knifed in the back while the vulture is up and it's main purpose is to cover your six (which means ur back) I have several threads requesting to buff it up for these reasons.
amazing list by the way i used your tips on using the GRYPHON next game i went back and got like 6-7 kills with it, it really is a beast, what really was happening i noticed was that the enemy was not the one destroying the GRYPHON i was blowing it up lol im horrible, anyways thanks for the tips and know i have the Patch (get final kill with GRYPHON) now i just have to get kills for the other patches
SAT COMS very useful in Hardcore Game Modes
Griffon is my favorite. I stay in the center of the map and fly it high moving it up and down so it won't get hit. It also helps me from destroying it myself. LOL! Also it's smart to deploy it in an open area as it will give you better reception.
Sentry guns and IMS. I put sentry guns in a corner facing at a 45 degree so it covers two pathways and an IMS in the rear path where someone might try flank the sentry gun from the rear. I also like to get a few long distance kills from an upstairs room and earn my IMS then leave the IMS in that room and move on. Love hearing them rage from getting out smarted.